Evidence used
- No CISA KEV confirmation is currently recorded.
- Exploitation requires an existing local or physical foothold with privileges.
- EPSS is 0.15% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-93433High confidence
Libstoragemgmt: libstoragemgmt: denial of service via stack buffer overflow in scsi vpd page parsing
Red Hat · Red Hat Enterprise Linux 10
5.5MediumCVSS 3.1
Patch only the product branches with a verified fix
Fix availability varies by productMedium 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 472 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityMedium→Operational priority:Low, lowered one band.downgradedsince 24 Sep 2026
Compensating controls
- Apply the linked authoritative mitigation while planning the permanent fix.
- Restrict local access and enforce least privilege on affected hosts.
- Monitor vendor guidance and exploitation sources for a material change.
Verification
- Confirm that the asset runs Red Hat Red Hat Enterprise Linux 10 and falls inside the recorded affected range.
- Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
- Validate exposure, authentication requirements and compensating controls in the actual environment.
- Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Remediation availability differs by product scope
Verified remediation exists for at least one product or source, but 472 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
- Red Hat Product Security: 50 affected or under-investigation product states without a fixed product state in the same current advisory
- SUSE Product Security Team: 422 affected or under-investigation product states without a fixed product state in the same current advisory
Direct vendor intelligence
2 currentAuthoritative 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.
CVE-2026-93433 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitylibstoragemgmt: libstoragemgmt: Denial of Service via stack buffer overflow in SCSI VPD page parsing
The vendor explicitly identifies these products as affected by this CVE.
- libstoragemgmt-arcconf-plugin as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-devel as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-hpsa-plugin as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-local-plugin as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-megaraid-plugin as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-nfs-plugin as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-targetd-plugin as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-udev as a component of Red Hat Enterprise Linux 10
- libstoragemgmt.src as a component of Red Hat Enterprise Linux 10
- python3-libstoragemgmt as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-arcconf-plugin as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-devel as a component of Red Hat Enterprise Linux 7
- Summary
- A flaw was found in libstoragemgmt. An attacker with control over a local or virtual storage device could provide specially crafted SCSI (Small Computer System Interface) Vital Product Data (VPD) page 0x80 data. This malformed data, specifically an untrusted page length field, can lead to a stack buffer overflow in the `_sg_parse_vpd_80()` function during serial number parsing. Successful exploitation could result in a denial of service by crashing or destabilizing the process querying the serial number.
- Remediation
- Avoid querying local disk serial numbers from untrusted or attacker-controlled storage devices or virtual storage backends. Systems should be configured to reject or sanitize malformed SCSI VPD page 0x80 data before it is processed by libstoragemgmt to prevent stack buffer overflows.
CVE-2026-93433 · CSAF 2.0 · revision 2 · interimSUSE Product Security TeamCVE-2026-93433
The vendor explicitly identifies these products as affected by this CVE.
- libstoragemgmt as component of SUSE Linux Enterprise Desktop 15 SP7
- libstoragemgmt-devel as component of SUSE Linux Enterprise Desktop 15 SP7
- libstoragemgmt-udev as component of SUSE Linux Enterprise Desktop 15 SP7
- libstoragemgmt1 as component of SUSE Linux Enterprise Desktop 15 SP7
- python3-libstoragemgmt as component of SUSE Linux Enterprise Desktop 15 SP7
- libstoragemgmt as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- libstoragemgmt-arcconf-plugin as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- libstoragemgmt-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- libstoragemgmt-hpsa-plugin as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- libstoragemgmt-local-plugin as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- libstoragemgmt-megaraid-plugin as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- libstoragemgmt-netapp-plugin as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- Summary
- A flaw was found in libstoragemgmt. An attacker with control over a local or virtual storage device could provide specially crafted SCSI (Small Computer System Interface) Vital Product Data (VPD) page 0x80 data. This malformed data, specifically an untrusted page length field, can lead to a stack buffer overflow in the `_sg_parse_vpd_80()` function during serial number parsing. Successful exploitation could result in a denial of service by crashing or destabilizing the process querying the serial number.
- Remediation
- No remediation text is recorded.
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 472 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Fix availability varies by product01
What, why and how
A flaw was found in libstoragemgmt. An attacker with control over a local or virtual storage device could provide specially crafted SCSI (Small Computer System Interface) Vital Product Data (VPD) page 0x80 data. This malformed data, specifically an untrusted page length field, can lead to a stack buffer overflow in the `_sg_parse_vpd_80()` function during serial number parsing. Successful exploitation could result in a denial of service by crashing or destabilizing the process querying the serial number.
What
A flaw was found in libstoragemgmt. An attacker with control over a local or virtual storage device could provide specially crafted SCSI (Small Computer System Interface) Vital Product Data (VPD) page 0x80 data. This malformed data, specifically an untrusted page length field, can lead to a stack buffer overflow in the `_sg_parse_vpd_80()` function during serial number parsing. Successful exploitation could result in a denial of service by crashing or destabilizing the process querying the serial number.
Why
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
How
An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.
What
A flaw was found in libstoragemgmt. An attacker with control over a local or virtual storage device could provide specially crafted SCSI (Small Computer System Interface) Vital Product Data (VPD) page 0x80 data. This malformed data, specifically an untrusted page length field, can lead to a stack buffer overflow in the `_sg_parse_vpd_80()` function during serial number parsing. Successful exploitation could result in a denial of service by crashing or destabilizing the process querying the serial number.
Why
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
How
An attacker operating through local access may attempt exploitation with low privileges. 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 No confirmed evidence
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.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 None recorded
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.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
- local access → Stack-based Buffer Overflow → disrupt the affected service
- Attack surface
- Local
- Privileges required
- Low: a basic authenticated account is required
- 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-121 ↗
CWE-121: Stack-based Buffer Overflow. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
- 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:L/PR:L/UI:N/S:U/C:N/I:N/A:HCommon 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.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level 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.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.
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
- libstoragemgmt-arcconf-plugin as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-devel as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-hpsa-plugin as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-local-plugin as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-megaraid-plugin as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-nfs-plugin as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-targetd-plugin as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-udev as a component of Red Hat Enterprise Linux 10
- libstoragemgmt.src as a component of Red Hat Enterprise Linux 10
- python3-libstoragemgmt as a component of Red Hat Enterprise Linux 10
- libstoragemgmt-arcconf-plugin as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-devel as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-hpsa-plugin as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-local-plugin as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-megaraid-plugin as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-netapp-plugin as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-nfs-plugin as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-nfs-plugin-clibs as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-nstor-plugin as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-python as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-python-clibs as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-smis-plugin as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-targetd-plugin as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-udev as a component of Red Hat Enterprise Linux 7
- libstoragemgmt.src as a component of Red Hat Enterprise Linux 7
- libstoragemgmt-arcconf-plugin as a component of Red Hat Enterprise Linux 8
- libstoragemgmt-devel as a component of Red Hat Enterprise Linux 8
- libstoragemgmt-hpsa-plugin as a component of Red Hat Enterprise Linux 8
- libstoragemgmt-local-plugin as a component of Red Hat Enterprise Linux 8
- libstoragemgmt-megaraid-plugin as a component of Red Hat Enterprise Linux 8
- and 20 more
- 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
- Avoid querying local disk serial numbers from untrusted or attacker-controlled storage devices or virtual storage backends. Systems should be configured to reject or sanitize malformed SCSI VPD page 0x80 data before it is processed by libstoragemgmt to prevent stack buffer overflows.
04
Evidence and provenance
Published 21 Sept 2026 · Last source change 24 Sept 2026, 22:39 UTC · CWE-121 · Stack-based Buffer Overflow
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-09-22
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2026-84117
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD awaiting enrichment
Core structured fields are present and their contributing authorities are shown above.
Material change intelligence
View recent updates ↗What changed after publication
- ENISA EUVD mappingEUVD-2026-84117 was added to the official ENISA EUVD mapping for this CVE.ENISA EUVD ↗
- Before
- not recorded
- After
- {"euvdId":"EUVD-2026-84117"}
- Catalogue recordCVE added to the BlackTree catalogue.CNA ↗
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.