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Full vulnerability report · 2026
CVE-2026-75805High confidence

NULL Pointer Dereference in CMP Client Revocation Response Handling

OpenSSL · OpenSSL

5.3MediumCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.22% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs OpenSSL OpenSSL and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Alpine, Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

7 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 2 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Alpine v3.21v3.21 · mainopensslVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.3.3.7-r2Alpine Security Database ↗Source updated 6 Oct 2026
Debian trixietrixie · sourceopensslVendor fix publishedDebian records a fixed source-package version for this release.3.5.7-1~deb13u3Debian Security Tracker ↗Source updated 7 Oct 2026
Debian bookwormbookworm · sourceopensslAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 7 Oct 2026
Debian forkyforky · sourceopensslAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 7 Oct 2026
Debian sidsid · sourceopensslVendor fix publishedDebian records a fixed source-package version for this release.3.6.5-1Debian Security Tracker ↗Source updated 7 Oct 2026
Ubuntu 24.04 LTSnoble · standard archiveedk2Under evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.Not published in this feedCanonical Ubuntu Security ↗Source updated 7 Oct 2026
Ubuntu 24.04 LTSnoble · standard archiveopensslVendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.3.0.13-0ubuntu3.16Canonical Ubuntu Security ↗Source updated 7 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

2 current
CVE-2026-75805 · CSAF 2.0 · revision 3 · interimSUSE Product Security TeamCVE-2026-75805
49 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • openssl-3-livepatches as component of SUSE Linux Enterprise Live Patching 15 SP7
  • libopenssl-3-devel as component of SUSE Linux Enterprise Server 16.0
  • libopenssl-3-fips-provider as component of SUSE Linux Enterprise Server 16.0
  • libopenssl-3-fips-provider-x86-64-v3 as component of SUSE Linux Enterprise Server 16.0
  • libopenssl3 as component of SUSE Linux Enterprise Server 16.0
  • libopenssl3-x86-64-v3 as component of SUSE Linux Enterprise Server 16.0
  • openssl-3 as component of SUSE Linux Enterprise Server 16.0
  • openssl-3-doc as component of SUSE Linux Enterprise Server 16.0
  • openssl-3-livepatches as component of SUSE Linux Enterprise Server 16.0
  • libopenssl-3-devel as component of SUSE Linux Enterprise Server 16.1
  • libopenssl-3-fips-provider as component of SUSE Linux Enterprise Server 16.1
  • libopenssl-3-fips-provider-x86-64-v3 as component of SUSE Linux Enterprise Server 16.1
Summary
Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial of Service for the affected client application. CWE: CWE-476: NULL-pointer dereference Description: A CMP client revoking a certificate has to tell the server which certificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the certificate itself or its issuer name and serial number. This is 'openssl cmp -cmd rr -csr ' on the command line, or OSSL_CMP_exec_RR_ses() with the certificate supplied via OSSL_CMP_CTX_set1_p10CSR() through the API. A CSR does not contain the issuer name and serial number of the certificate, so the client does not send them. A server may optionally name the certificate it revoked in its response, and the client then compares that name against what it sent. Having sent neither an issuer name nor a serial number, it has nothing to compare against, and a server returning a specially crafted name causes the client to read from a NULL pointer and crash. The revocation response is checked for valid message protection before the affected code is reached, so an attacker must be a malicious or compromised CMP server, or a man-in-the-middle in possession of the secret used for message protection. Clients that identify the certificate to be revoked by a certificate or by issuer and serial number rather than by a PKCS#10 CSR are not affected. FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2026-75805 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityopenssl: openssl: Denial of Service via crafted CMP certificate revocation response
12 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • openssl as a component of Red Hat Enterprise Linux 10
  • openssl-devel as a component of Red Hat Enterprise Linux 10
  • openssl-libs as a component of Red Hat Enterprise Linux 10
  • openssl-perl as a component of Red Hat Enterprise Linux 10
  • openssl.src as a component of Red Hat Enterprise Linux 10
  • openssl as a component of Red Hat Enterprise Linux 9
  • openssl-devel as a component of Red Hat Enterprise Linux 9
  • openssl-libs as a component of Red Hat Enterprise Linux 9
  • openssl-perl as a component of Red Hat Enterprise Linux 9
  • openssl.src as a component of Red Hat Enterprise Linux 9
  • openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4
  • ansible-automation-platform/bootc-automation-portal-rhel9 as a component of Self-service automation portal 2
Summary
A flaw was found in OpenSSL. When a Certificate Management Protocol (CMP) client requests certificate revocation using a PKCS#10 Certificate Signing Request (CSR), it omits the certificate issuer name and serial number. A malicious or compromised CMP server, or an attacker possessing valid message protection credentials, can exploit this flaw by returning a crafted revocation response. This triggers a NULL pointer dereference when the client attempts to compare response data, causing the client application to crash and resulting in a Denial of Service (DoS).
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-89010

No EUVD known-exploited evidence

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial of Service for the affected client application. CWE: CWE-476: NULL-pointer dereference Description: A CMP client revoking a certificate has to tell the server which certificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the certificate itself or its issuer name and serial number. This is 'openssl cmp -cmd rr -csr <file>' on the command line, or OSSL_CMP_exec_RR_ses() with the certificate supplied via OSSL_CMP_CTX_set1_p10CSR() through the API. A CSR does not contain the issuer name and serial number of the certificate, so the client does not send them. A server may optionally name the certificate it revoked in its response, and the client then compares that name against what it sent. Having sent neither an issuer name nor a serial number, it has nothing to compare against, and a server returning a specially crafted name causes the client to read from a NULL pointer and crash. The revocation response is checked for valid message protection before the affected code is reached, so an attacker must be a malicious or compromised CMP server, or a man-in-the-middle in possession of the secret used for message protection. Clients that identify the certificate to be revoked by a certificate or by issuer and serial number rather than by a PKCS#10 CSR are not affected. FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
5.3 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial of Service for the affected client application. CWE: CWE-476: NULL-pointer dereference Description: A CMP client revoking a certificate has to tell the server which certificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the certificate itself or its issuer name and serial number. This is 'openssl cmp -cmd rr -csr <file>' on the command line, or OSSL_CMP_exec_RR_ses() with the certificate supplied via OSSL_CMP_CTX_set1_p10CSR() through the API. A CSR does not contain the issuer name and serial number of the certificate, so the client does not send them. A server may optionally name the certificate it revoked in its response, and the client then compares that name against what it sent. Having sent neither an issuer name nor a serial number, it has nothing to compare against, and a server returning a specially crafted name causes the client to read from a NULL pointer and crash. The revocation response is checked for valid message protection before the affected code is reached, so an attacker must be a malicious or compromised CMP server, or a man-in-the-middle in possession of the secret used for message protection. Clients that identify the certificate to be revoked by a certificate or by issuer and serial number rather than by a PKCS#10 CSR are not affected. FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary.

What

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial of Service for the affected client application. CWE: CWE-476: NULL-pointer dereference Description: A CMP client revoking a certificate has to tell the server which certificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the certificate itself or its issuer name and serial number. This is 'openssl cmp -cmd rr -csr <file>' on the command line, or OSSL_CMP_exec_RR_ses() with the certificate supplied via OSSL_CMP_CTX_set1_p10CSR() through the API. A CSR does not contain the issuer name and serial number of the certificate, so the client does not send them. A server may optionally name the certificate it revoked in its response, and the client then compares that name against what it sent. Having sent neither an issuer name nor a serial number, it has nothing to compare against, and a server returning a specially crafted name causes the client to read from a NULL pointer and crash. The revocation response is checked for valid message protection before the affected code is reached, so an attacker must be a malicious or compromised CMP server, or a man-in-the-middle in possession of the secret used for message protection. Clients that identify the certificate to be revoked by a certificate or by issuer and serial number rather than by a PKCS#10 CSR are not affected. FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary.

Why

The product dereferences a pointer that it expects to be valid but is NULL.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

What

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial of Service for the affected client application. CWE: CWE-476: NULL-pointer dereference Description: A CMP client revoking a certificate has to tell the server which certificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the certificate itself or its issuer name and serial number. This is 'openssl cmp -cmd rr -csr <file>' on the command line, or OSSL_CMP_exec_RR_ses() with the certificate supplied via OSSL_CMP_CTX_set1_p10CSR() through the API. A CSR does not contain the issuer name and serial number of the certificate, so the client does not send them. A server may optionally name the certificate it revoked in its response, and the client then compares that name against what it sent. Having sent neither an issuer name nor a serial number, it has nothing to compare against, and a server returning a specially crafted name causes the client to read from a NULL pointer and crash. The revocation response is checked for valid message protection before the affected code is reached, so an attacker must be a malicious or compromised CMP server, or a man-in-the-middle in possession of the secret used for message protection. Clients that identify the certificate to be revoked by a certificate or by issuer and serial number rather than by a PKCS#10 CSR are not affected. FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary.

Why

The product dereferences a pointer that it expects to be valid but is NULL.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → NULL Pointer Dereference → disrupt the affected service
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-476 ↗

CWE-476: NULL Pointer Dereference. The product dereferences a pointer that it expects to be valid but is NULL.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.ALowAvailability impact: A successful attack can cause a limited loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedDenial of serviceCWE-476
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-89010Official EUVD mapping

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial of Service for the affected client application. CWE: CWE-476: NULL-pointer dereference Description: A CMP client revoking a certificate has to tell the server which certificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the certificate itself or its issuer name and serial number. This is 'openssl cmp -cmd rr -csr <file>' on the command line, or OSSL_CMP_exec_RR_ses() with the certificate supplied via OSSL_CMP_CTX_set1_p10CSR() through the API. A CSR does not contain the issuer name and serial number of the certificate, so the client does not send them. A server may optionally name the certificate it revoked in its response, and the client then compares that name against what it sent. Having sent neither an issuer name nor a serial number, it has nothing to compare against, and a server returning a specially crafted name causes the client to read from a NULL pointer and crash. The revocation response is checked for valid message protection before the affected code is reached, so an attacker must be a malicious or compromised CMP server, or a man-in-the-middle in possession of the secret used for message protection. Clients that identify the certificate to be revoked by a certificate or by issuer and serial number rather than by a PKCS#10 CSR are not affected. FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3638OpenSSL: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in OpenSSL ausnutzen, um Sicherheitsvorkehrungen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren und einen Denial-of-Service-Zustand zu verursachen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1241Multiples vulnérabilités dans OpenSSL

De multiples vulnérabilités ont été découvertes dans OpenSSL. Certaines d'entre elles permettent à un attaquant de provoquer un déni de service à distance, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 29 Sept 2026 · Last source change 29 Sept 2026, 16:54 UTC · CWE-476 · NULL Pointer Dereference

CVE recordCVE.org · 5.2
CVSS sourceCISA ADP
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-30
European sourceENISA EUVD · EUVD-2026-89010
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceCNA
NVD statusNVD awaiting enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    OpenSSL: 4.0.0 < 4.0.3, 3.6.0 < 3.6.5, 3.5.0 < 3.5.9, 3.4.0 < 3.4.8, 3.0.0 < 3.0.23 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    OpenSSL: 4.0.0 < 4.0.3, 3.6.0 < 3.6.5, 3.5.0 < 3.5.9, 3.4.0 < 3.4.8, 3.0.0 < 3.0.23 · Fixed: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
    Red Hat Product Security ↗
  2. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-75805 to remediation: access.redhat.com/CVE-2026-75805.
    Before
    remediation: access.redhat.com/CVE-2026-75805
    After
    remediation: access.redhat.com/CVE-2026-75805
    Red Hat Product Security ↗
  3. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Red Hat Product Security ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub; edk2-aarch64 as a component of Red Hat Enterprise Linux 10; edk2-ovmf as a component of Red Hat Enterprise Linux 10; edk2-tools as a component of Red Hat Enterprise Linux 10; edk2-tools-doc as a component of Red Hat Enterprise Linux 10; edk2.src as a component of Red Hat Enterprise Linux 10; mokutil as a component of Red Hat Enterprise Linux 10; openssl as a component of Red Hat Enterprise Linux 10; openssl-devel as a component of Red Hat Enterprise Linux 10; openssl-libs as a component of Red Hat Enterprise Linux 10; openssl-perl as a component of Red Hat Enterprise Linux 10; openssl.src as a component of Red Hat Enterprise Linux 10; shim-aa64 as a component of Red Hat Enterprise Linux 10; shim-unsigned-aarch64.src as a component of Red Hat Enterprise Linux 10; shim-unsigned-x64.src as a component of Red Hat Enterprise Linux 10; shim-x64 as a component of Red Hat Enterprise Linux 10; openssl as a component of Red Hat Enterprise Linux 6; openssl-devel as a component of Red Hat Enterprise Linux 6; openssl-perl as a component of Red Hat Enterprise Linux 6; openssl-static as a component of Red Hat Enterprise Linux 6; openssl.src as a component of Red Hat Enterprise Linux 6; AAVMF as a component of Red Hat Enterprise Linux 7; OVMF as a component of Red Hat Enterprise Linux 7; mokutil as a component of Red Hat Enterprise Linux 7; openssl as a component of Red Hat Enterprise Linux 7; openssl-devel as a component of Red Hat Enterprise Linux 7; openssl-libs as a component of Red Hat Enterprise Linux 7; openssl-perl as a component of Red Hat Enterprise Linux 7; openssl-static as a component of Red Hat Enterprise Linux 7; openssl.src as a component of Red Hat Enterprise Linux 7; and 58 more
    After
    openssl as a component of Red Hat Enterprise Linux 10; openssl-devel as a component of Red Hat Enterprise Linux 10; openssl-libs as a component of Red Hat Enterprise Linux 10; openssl-perl as a component of Red Hat Enterprise Linux 10; openssl.src as a component of Red Hat Enterprise Linux 10; openssl as a component of Red Hat Enterprise Linux 9; openssl-devel as a component of Red Hat Enterprise Linux 9; openssl-libs as a component of Red Hat Enterprise Linux 9; openssl-perl as a component of Red Hat Enterprise Linux 9; openssl.src as a component of Red Hat Enterprise Linux 9; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4; ansible-automation-platform/bootc-automation-portal-rhel9 as a component of Self-service automation portal 2 · Fixed: openssl-0:3.5.9-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; openssl-0:3.5.9-0.1.hum1@src as a component of Red Hat Hardened Images; openssl-0:3.5.9-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; openssl-config-fips-0:3.5.9-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; openssl-config-fips-0:3.5.9-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; openssl-devel-0:3.5.9-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; openssl-devel-0:3.5.9-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; openssl-devel-engine-0:3.5.9-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; openssl-devel-engine-0:3.5.9-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; openssl-fips-provider-upstream-0:3.5.9-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; openssl-fips-provider-upstream-0:3.5.9-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; openssl-libs-0:3.5.9-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; openssl-libs-0:3.5.9-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; openssl-perl-0:3.5.9-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; openssl-perl-0:3.5.9-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; openssl3-0:3.5.9-0.1.hum1@src as a component of Red Hat Hardened Images; openssl3-devel-0:3.5.9-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; openssl3-devel-0:3.5.9-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; openssl3-devel-engine-0:3.5.9-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; openssl3-devel-engine-0:3.5.9-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; openssl3-libs-0:3.5.9-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; openssl3-libs-0:3.5.9-0.1.hum1@x86_64 as a component of Red Hat Hardened Images
    Red Hat Product Security ↗
  5. BlackTree coverageBlackTree article coverage changed from no BlackTree article to 1 BlackTree article.
    Before
    no BlackTree article
    After
    1 BlackTree article
    BlackTree editorial ↗
  6. Affected versionsThe structured affected or fixed version information changed.
    Before
    rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub; edk2-aarch64 as a component of Red Hat Enterprise Linux 10; edk2-ovmf as a component of Red Hat Enterprise Linux 10; edk2-tools as a component of Red Hat Enterprise Linux 10; edk2-tools-doc as a component of Red Hat Enterprise Linux 10; edk2.src as a component of Red Hat Enterprise Linux 10; mokutil as a component of Red Hat Enterprise Linux 10; openssl as a component of Red Hat Enterprise Linux 10; openssl-devel as a component of Red Hat Enterprise Linux 10; openssl-libs as a component of Red Hat Enterprise Linux 10; openssl-perl as a component of Red Hat Enterprise Linux 10; openssl.src as a component of Red Hat Enterprise Linux 10; shim-aa64 as a component of Red Hat Enterprise Linux 10; shim-unsigned-aarch64.src as a component of Red Hat Enterprise Linux 10; shim-unsigned-x64.src as a component of Red Hat Enterprise Linux 10; shim-x64 as a component of Red Hat Enterprise Linux 10; openssl as a component of Red Hat Enterprise Linux 6; openssl-devel as a component of Red Hat Enterprise Linux 6; openssl-perl as a component of Red Hat Enterprise Linux 6; openssl-static as a component of Red Hat Enterprise Linux 6; openssl.src as a component of Red Hat Enterprise Linux 6; AAVMF as a component of Red Hat Enterprise Linux 7; OVMF as a component of Red Hat Enterprise Linux 7; mokutil as a component of Red Hat Enterprise Linux 7; openssl as a component of Red Hat Enterprise Linux 7; openssl-devel as a component of Red Hat Enterprise Linux 7; openssl-libs as a component of Red Hat Enterprise Linux 7; openssl-perl as a component of Red Hat Enterprise Linux 7; openssl-static as a component of Red Hat Enterprise Linux 7; openssl.src as a component of Red Hat Enterprise Linux 7; and 59 more
    After
    rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub; edk2-aarch64 as a component of Red Hat Enterprise Linux 10; edk2-ovmf as a component of Red Hat Enterprise Linux 10; edk2-tools as a component of Red Hat Enterprise Linux 10; edk2-tools-doc as a component of Red Hat Enterprise Linux 10; edk2.src as a component of Red Hat Enterprise Linux 10; mokutil as a component of Red Hat Enterprise Linux 10; openssl as a component of Red Hat Enterprise Linux 10; openssl-devel as a component of Red Hat Enterprise Linux 10; openssl-libs as a component of Red Hat Enterprise Linux 10; openssl-perl as a component of Red Hat Enterprise Linux 10; openssl.src as a component of Red Hat Enterprise Linux 10; shim-aa64 as a component of Red Hat Enterprise Linux 10; shim-unsigned-aarch64.src as a component of Red Hat Enterprise Linux 10; shim-unsigned-x64.src as a component of Red Hat Enterprise Linux 10; shim-x64 as a component of Red Hat Enterprise Linux 10; openssl as a component of Red Hat Enterprise Linux 6; openssl-devel as a component of Red Hat Enterprise Linux 6; openssl-perl as a component of Red Hat Enterprise Linux 6; openssl-static as a component of Red Hat Enterprise Linux 6; openssl.src as a component of Red Hat Enterprise Linux 6; AAVMF as a component of Red Hat Enterprise Linux 7; OVMF as a component of Red Hat Enterprise Linux 7; mokutil as a component of Red Hat Enterprise Linux 7; openssl as a component of Red Hat Enterprise Linux 7; openssl-devel as a component of Red Hat Enterprise Linux 7; openssl-libs as a component of Red Hat Enterprise Linux 7; openssl-perl as a component of Red Hat Enterprise Linux 7; openssl-static as a component of Red Hat Enterprise Linux 7; openssl.src as a component of Red Hat Enterprise Linux 7; and 58 more
    Red Hat Product Security ↗
  7. ENISA EUVD mappingEUVD-2026-89010 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-89010"}
    ENISA EUVD ↗
  8. SeveritySeverity changed from Unknown to Medium.
    Before
    Unknown
    After
    Medium
    CISA ADP ↗
  9. CVSS scoreCVSS score changed from not recorded to 5.3 (CVSS 3.1 · CISA ADP · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).
    Before
    not recorded
    After
    5.3 (CVSS 3.1 · CISA ADP · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
    CISA ADP ↗
  10. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2026-89010↗Vendor CSAF · SUSE Product Security Team↗Red Hat Product Security security advisory↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-75805 · cve.blacktree.nl