BlackTreeCVE Intelligence
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Full vulnerability report · 2022
CVE-2021-35937High confidence

A race condition vulnerability was found in rpm

Unknown · RPM

6.4MediumCVSS 3.1
Recommended action
Within 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
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.
  • A structured source references public exploit or proof-of-concept material.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.32% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Unknown RPM 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.

Distribution package intelligence

Release-specific package status

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

7 package states
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 v3.23v3.23 · communityrpmVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.4.18.0-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.22v3.22 · communityrpmVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.4.18.0-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.21v3.21 · communityrpmVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.4.18.0-r0Alpine Security Database ↗Source updated 19 Aug 2026
Debian trixietrixie · sourcerpmVendor fix publishedDebian records a fixed source-package version for this release.4.18.0+dfsg-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcerpmVendor fix publishedDebian records a fixed source-package version for this release.4.18.0+dfsg-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcerpmVendor fix publishedDebian records a fixed source-package version for this release.4.18.0+dfsg-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcerpmVendor fix publishedDebian records a fixed source-package version for this release.4.18.0+dfsg-1Debian Security Tracker ↗Source updated 5 Oct 2026
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-2021-22572

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

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
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

What

A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Why

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

How

An attacker operating through local access may attempt exploitation with elevated privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Why

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

How

An attacker operating through local access may attempt exploitation with elevated privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

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.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
local access → Improper Link Resolution Before File Access ('Link Following') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
High: elevated access is required
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
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-59 ↗

CWE-59: Improper Link Resolution Before File Access ('Link Following'). The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

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

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

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRHighPrivileges required: The attacker needs elevated or administrative privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
CWE-59Public exploit reference
A

Official authority intelligence

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

Cyber Security Agency of Singapore · English · CSA-SB-20220831Security Bulletin 31 Aug 2022

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 31 Aug 2022, published on 31 August 2022. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0281Multiples vulnérabilités dans les produits Splunk

CVERecord?id=CVE-2019-20386 Référence CVE CVE-2019-3842 https://www.cve.org/CVERecord?id=CVE-2019-3842 Référence CVE CVE-2019-3843 https://www.cve.org/CVERecord?id=CVE-2019-3843 Référence CVE CVE-2019-3844 https://www.cve.org/CVERecord?id=CVE-2019-3844 Référence CVE CVE-2020-13776 https://www.cve.org/CVERecord?id=CVE-2020-13776 Référence CVE CVE-2020-1712 https://www.cve.org/CVERecord?id=CVE-2020-1712 Référence CVE CVE-2020-17521 https://www.cve.org/CVERecord?id=CVE-2020-17521 Référence CVE CVE-2020-36518 https://www.cve.org/CVERecord?id=CVE-2020-36518 Référence CVE CVE-2021-33910 https://www.cve.org/CVERecord?id=CVE-2021-33910 Référence CVE CVE-2021-35937 https://www.cve.org/CVERecord?id=CVE-2021-35937 Référence CVE CVE-2021-35938 https://www.cve.org/CVERecord?id=CVE-2021-35938 Référence CVE CVE-2021-35939 https://www.cve.org/CVERecord?id=CVE-2021-35939 Référence CVE CVE-2021-46877 https://www.cve.org/CVERecord?id=CVE-2021-46877 Référence CVE CVE-2022-23302 https://www.cve.org/CVERecord?id=CVE-2022-23302 Référence CVE CVE-2022-23305 https://www.cve.org/CVERecord?id=CVE-2022-23305 Référence CVE CVE-2022-23307 https://www.cve.org/CVERecord?id=CVE-2022-23307 Référence CVE CVE-2022-31159 https://www.cve.org/CVERecord?id=CVE-2022-31159 Référence CVE CVE-2022-3821 https://www.cve.org/CVERecord?id=C

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0218Multiples vulnérabilités dans les produits VMware

g/CVERecord?id=CVE-2021-30560 Référence CVE CVE-2021-32256 https://www.cve.org/CVERecord?id=CVE-2021-32256 Référence CVE CVE-2021-32292 https://www.cve.org/CVERecord?id=CVE-2021-32292 Référence CVE CVE-2021-3326 https://www.cve.org/CVERecord?id=CVE-2021-3326 Référence CVE CVE-2021-33574 https://www.cve.org/CVERecord?id=CVE-2021-33574 Référence CVE CVE-2021-3421 https://www.cve.org/CVERecord?id=CVE-2021-3421 Référence CVE CVE-2021-3520 https://www.cve.org/CVERecord?id=CVE-2021-3520 Référence CVE CVE-2021-3521 https://www.cve.org/CVERecord?id=CVE-2021-3521 Référence CVE CVE-2021-3549 https://www.cve.org/CVERecord?id=CVE-2021-3549 Référence CVE CVE-2021-35937 https://www.cve.org/CVERecord?id=CVE-2021-35937 Référence CVE CVE-2021-35938 https://www.cve.org/CVERecord?id=CVE-2021-35938 Référence CVE CVE-2021-35939 https://www.cve.org/CVERecord?id=CVE-2021-35939 Référence CVE CVE-2021-35942 https://www.cve.org/CVERecord?id=CVE-2021-35942 Référence CVE CVE-2021-36770 https://www.cve.org/CVERecord?id=CVE-2021-36770 Référence CVE CVE-2021-36976 https://www.cve.org/CVERecord?id=CVE-2021-36976 Référence CVE CVE-2021-37972 https://www.cve.org/CVERecord?id=CVE-2021-37972 Référence CVE CVE-2021-38604 https://www.cve.org/CVERecord?id=CVE-2021-38604 Référence CVE CVE-2021-39537 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-1057Multiples vulnérabilités dans les produits VMware

ERecord?id=CVE-2021-24032 Référence CVE CVE-2021-27645 https://www.cve.org/CVERecord?id=CVE-2021-27645 Référence CVE CVE-2021-31239 https://www.cve.org/CVERecord?id=CVE-2021-31239 Référence CVE CVE-2021-32256 https://www.cve.org/CVERecord?id=CVE-2021-32256 Référence CVE CVE-2021-3326 https://www.cve.org/CVERecord?id=CVE-2021-3326 Référence CVE CVE-2021-33294 https://www.cve.org/CVERecord?id=CVE-2021-33294 Référence CVE CVE-2021-33574 https://www.cve.org/CVERecord?id=CVE-2021-33574 Référence CVE CVE-2021-3421 https://www.cve.org/CVERecord?id=CVE-2021-3421 Référence CVE CVE-2021-3521 https://www.cve.org/CVERecord?id=CVE-2021-3521 Référence CVE CVE-2021-35937 https://www.cve.org/CVERecord?id=CVE-2021-35937 Référence CVE CVE-2021-35938 https://www.cve.org/CVERecord?id=CVE-2021-35938 Référence CVE CVE-2021-35939 https://www.cve.org/CVERecord?id=CVE-2021-35939 Référence CVE CVE-2021-35942 https://www.cve.org/CVERecord?id=CVE-2021-35942 Référence CVE CVE-2021-36222 https://www.cve.org/CVERecord?id=CVE-2021-36222 Référence CVE CVE-2021-36690 https://www.cve.org/CVERecord?id=CVE-2021-36690 Référence CVE CVE-2021-37600 https://www.cve.org/CVERecord?id=CVE-2021-37600 Référence CVE CVE-2021-37750 https://www.cve.org/CVERecord?id=CVE-2021-37750 Référence CVE CVE-2021-38604 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0969Multiples vulnérabilités dans les produits VMware

ord?id=CVE-2021-35561 Référence CVE CVE-2021-35564 https://www.cve.org/CVERecord?id=CVE-2021-35564 Référence CVE CVE-2021-35565 https://www.cve.org/CVERecord?id=CVE-2021-35565 Référence CVE CVE-2021-35567 https://www.cve.org/CVERecord?id=CVE-2021-35567 Référence CVE CVE-2021-35578 https://www.cve.org/CVERecord?id=CVE-2021-35578 Référence CVE CVE-2021-35586 https://www.cve.org/CVERecord?id=CVE-2021-35586 Référence CVE CVE-2021-35588 https://www.cve.org/CVERecord?id=CVE-2021-35588 Référence CVE CVE-2021-35603 https://www.cve.org/CVERecord?id=CVE-2021-35603 Référence CVE CVE-2021-3574 https://www.cve.org/CVERecord?id=CVE-2021-3574 Référence CVE CVE-2021-35937 https://www.cve.org/CVERecord?id=CVE-2021-35937 Référence CVE CVE-2021-35938 https://www.cve.org/CVERecord?id=CVE-2021-35938 Référence CVE CVE-2021-35939 https://www.cve.org/CVERecord?id=CVE-2021-35939 Référence CVE CVE-2021-35942 https://www.cve.org/CVERecord?id=CVE-2021-35942 Référence CVE CVE-2021-3596 https://www.cve.org/CVERecord?id=CVE-2021-3596 Référence CVE CVE-2021-3598 https://www.cve.org/CVERecord?id=CVE-2021-3598 Référence CVE CVE-2021-3605 https://www.cve.org/CVERecord?id=CVE-2021-3605 Référence CVE CVE-2021-3610 https://www.cve.org/CVERecord?id=CVE-2021-3610 Référence CVE CVE-2021-36221 https://www.cve.org/CVERecord?id=CVE-2021

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0756Multiples vulnérabilités dans les produits VMware

d?id=CVE-2021-35640 Référence CVE CVE-2021-35641 https://www.cve.org/CVERecord?id=CVE-2021-35641 Référence CVE CVE-2021-35642 https://www.cve.org/CVERecord?id=CVE-2021-35642 Référence CVE CVE-2021-35643 https://www.cve.org/CVERecord?id=CVE-2021-35643 Référence CVE CVE-2021-35644 https://www.cve.org/CVERecord?id=CVE-2021-35644 Référence CVE CVE-2021-35645 https://www.cve.org/CVERecord?id=CVE-2021-35645 Référence CVE CVE-2021-35646 https://www.cve.org/CVERecord?id=CVE-2021-35646 Référence CVE CVE-2021-35647 https://www.cve.org/CVERecord?id=CVE-2021-35647 Référence CVE CVE-2021-35648 https://www.cve.org/CVERecord?id=CVE-2021-35648 Référence CVE CVE-2021-35937 https://www.cve.org/CVERecord?id=CVE-2021-35937 Référence CVE CVE-2021-35938 https://www.cve.org/CVERecord?id=CVE-2021-35938 Référence CVE CVE-2021-35939 https://www.cve.org/CVERecord?id=CVE-2021-35939 Référence CVE CVE-2021-35942 https://www.cve.org/CVERecord?id=CVE-2021-35942 Référence CVE CVE-2021-38604 https://www.cve.org/CVERecord?id=CVE-2021-38604 Référence CVE CVE-2021-3875 https://www.cve.org/CVERecord?id=CVE-2021-3875 Référence CVE CVE-2021-3999 https://www.cve.org/CVERecord?id=CVE-2021-3999 Référence CVE CVE-2021-4122 https://www.cve.org/CVERecord?id=CVE-2021-4122 Référence CVE CVE-2021-4193 https://www.cve.org/CVERecord?id=CVE-202

Official advisory ↗
CERT-FR · French · CERTFR-2024-AVI-0958Multiples vulnérabilités dans les produits IBM

re 2024 https://www.ibm.com/support/pages/node/7175166 Bulletin de sécurité IBM 7175192 du 08 novembre 2024 https://www.ibm.com/support/pages/node/7175192 Bulletin de sécurité IBM 7175196 du 08 novembre 2024 https://www.ibm.com/support/pages/node/7175196 Référence CVE CVE-2017-11468 https://www.cve.org/CVERecord?id=CVE-2017-11468 Référence CVE CVE-2017-7500 https://www.cve.org/CVERecord?id=CVE-2017-7500 Référence CVE CVE-2017-7501 https://www.cve.org/CVERecord?id=CVE-2017-7501 Référence CVE CVE-2020-25659 https://www.cve.org/CVERecord?id=CVE-2020-25659 Référence CVE CVE-2020-36242 https://www.cve.org/CVERecord?id=CVE-2020-36242 Référence CVE CVE-2021-35937 https://www.cve.org/CVERecord?id=CVE-2021-35937 Référence CVE CVE-2021-35938 https://www.cve.org/CVERecord?id=CVE-2021-35938 Référence CVE CVE-2021-35939 https://www.cve.org/CVERecord?id=CVE-2021-35939 Référence CVE CVE-2021-42340 https://www.cve.org/CVERecord?id=CVE-2021-42340 Référence CVE CVE-2021-42694 https://www.cve.org/CVERecord?id=CVE-2021-42694 Référence CVE CVE-2021-43618 https://www.cve.org/CVERecord?id=CVE-2021-43618 Référence CVE CVE-2021-43980 https://www.cve.org/CVERecord?id=CVE-2021-43980 Référence CVE CVE-2021-46939 https://www.cve.org/CVERecord?id=CVE-2021-46939 Référence CVE CVE-2021-47018 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2024-AVI-0506Multiples vulnérabilités dans Juniper Secure Analytics

VERecord?id=CVE-2019-8675 Référence CVE CVE-2019-8696 https://www.cve.org/CVERecord?id=CVE-2019-8696 Référence CVE CVE-2020-10001 https://www.cve.org/CVERecord?id=CVE-2020-10001 Référence CVE CVE-2020-25656 https://www.cve.org/CVERecord?id=CVE-2020-25656 Référence CVE CVE-2020-27783 https://www.cve.org/CVERecord?id=CVE-2020-27783 Référence CVE CVE-2020-28241 https://www.cve.org/CVERecord?id=CVE-2020-28241 Référence CVE CVE-2020-3898 https://www.cve.org/CVERecord?id=CVE-2020-3898 Référence CVE CVE-2020-7656 https://www.cve.org/CVERecord?id=CVE-2020-7656 Référence CVE CVE-2021-33631 https://www.cve.org/CVERecord?id=CVE-2021-33631 Référence CVE CVE-2021-35937 https://www.cve.org/CVERecord?id=CVE-2021-35937 Référence CVE CVE-2021-35938 https://www.cve.org/CVERecord?id=CVE-2021-35938 Référence CVE CVE-2021-35939 https://www.cve.org/CVERecord?id=CVE-2021-35939 Référence CVE CVE-2021-3753 https://www.cve.org/CVERecord?id=CVE-2021-3753 Référence CVE CVE-2021-41043 https://www.cve.org/CVERecord?id=CVE-2021-41043 Référence CVE CVE-2021-4204 https://www.cve.org/CVERecord?id=CVE-2021-4204 Référence CVE CVE-2021-43618 https://www.cve.org/CVERecord?id=CVE-2021-43618 Référence CVE CVE-2021-43818 https://www.cve.org/CVERecord?id=CVE-2021-43818 Référence CVE CVE-2021-43975 https://www.cve.org/CVERecord?id=CVE-

Official advisory ↗
CERT-FR · French · CERTFR-2024-AVI-0305Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2019-19012 Référence CVE CVE-2019-19203 https://www.cve.org/CVERecord?id=CVE-2019-19203 Référence CVE CVE-2019-19204 https://www.cve.org/CVERecord?id=CVE-2019-19204 Référence CVE CVE-2020-28241 https://www.cve.org/CVERecord?id=CVE-2020-28241 Référence CVE CVE-2020-7656 https://www.cve.org/CVERecord?id=CVE-2020-7656 Référence CVE CVE-2021-22696 https://www.cve.org/CVERecord?id=CVE-2021-22696 Référence CVE CVE-2021-30468 https://www.cve.org/CVERecord?id=CVE-2021-30468 Référence CVE CVE-2021-31525 https://www.cve.org/CVERecord?id=CVE-2021-31525 Référence CVE CVE-2021-33194 https://www.cve.org/CVERecord?id=CVE-2021-33194 Référence CVE CVE-2021-35937 https://www.cve.org/CVERecord?id=CVE-2021-35937 Référence CVE CVE-2021-35938 https://www.cve.org/CVERecord?id=CVE-2021-35938 Référence CVE CVE-2021-35939 https://www.cve.org/CVERecord?id=CVE-2021-35939 Référence CVE CVE-2021-41043 https://www.cve.org/CVERecord?id=CVE-2021-41043 Référence CVE CVE-2022-2127 https://www.cve.org/CVERecord?id=CVE-2022-2127 Référence CVE CVE-2022-23437 https://www.cve.org/CVERecord?id=CVE-2022-23437 Référence CVE CVE-2022-27664 https://www.cve.org/CVERecord?id=CVE-2022-27664 Référence CVE CVE-2022-3094 https://www.cve.org/CVERecord?id=CVE-2022-3094 Référence CVE CVE-2022-34169 https://www.cve.org/CVERecord?id=CVE-

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2021-020261RPM の RPM Package Manager 他複数ベンダの製品における Time-of-check Time-of-use (TOCTOU) 競合状態の脆弱性

RPM の RPM Package Manager 他複数ベンダの製品には、Time-of-check Time-of-use (TOCTOU) 競合状態の脆弱性が存在します。

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.
Patch available
Affected
RPM: Fixed in rpm v4.18.0
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 25 Aug 2022 · Last source change 4 Aug 2024, 00:40 UTC · CWE-59 · Improper Link Resolution Before File Access ('Link Following')

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2021-22572
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

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No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
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-2021-35937 · cve.blacktree.nl