CVE-2026-80912

UNRATEDCVSS · not yet scoredTrending — 5 sources updated this week
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EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS v2: —Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In the Linux kernel, the following vulnerability has been resolved:

selinux: reject an unclaimed class value in security_get_classes()

security_get_classes() sizes an array by p_classes.nprim and fills it at value - 1, so a class value the policy never defines leaves a NULL. sel_make_classes() passes every entry to sel_make_dir(), reaching the same d_alloc_name() dereference as the permission array. The class symbol table is allowed to be sparse (policydb_class_isvalid() exists to absorb that), but this getter builds its own array straight from the hash table and has no such predicate.

Fail the lookup when a value went unclaimed instead of handing out the NULL. Conforming policies define every class they declare and are unaffected.

CVSS v3
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EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
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EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 14, 2026

References (8)

Vendor Advisories for CVE-2026-80912(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (352 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.12.96-1 (33 versions)6.12.105-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (168 versions)7.1.10-1—

Data Freshness Timeline

(refreshed 15× in last 7d / 26× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-17 09:52 UTCVendor advisory
  3. 2026-09-17 09:52 UTCGHSA enrichment
  4. 2026-09-16 14:08 UTCEPSS rescore
  5. 2026-09-16 05:15 UTCEPSS rescore
  6. 2026-09-15 03:12 UTCEPSS rescore
  7. 2026-09-15 03:12 UTCEPSS rescore
  8. 2026-09-14 13:38 UTCVendor advisory
  9. 2026-09-14 13:38 UTCGHSA enrichment
  10. 2026-09-14 13:27 UTCNVD update
  11. 2026-09-14 12:33 UTCVendor advisory
  12. 2026-09-14 12:33 UTCGHSA enrichment
  13. 2026-09-14 12:24 UTCMITRE cvelistV5
  14. 2026-09-13 07:22 UTCVendor advisory
  15. 2026-09-13 07:22 UTCGHSA enrichment
  16. 2026-09-10 11:03 UTCGHSA enrichment
  17. 2026-09-08 22:01 UTCEPSS rescore
  18. 2026-09-07 14:48 UTCEG score recompute
  19. 2026-09-07 14:48 UTCVendor advisory
  20. 2026-09-07 14:48 UTCGHSA enrichment
  21. 2026-09-06 13:48 UTCEPSS rescore
  22. 2026-09-05 15:31 UTCEPSS rescore
  23. 2026-09-04 18:33 UTCGHSA enrichment
  24. 2026-09-04 18:26 UTCNVD update
  25. 2026-09-04 17:29 UTCEG score recompute
Show 1 more
  1. 2026-09-04 17:29 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor)

Frequently asked(4)

What is CVE-2026-80912?
CVE-2026-80912 is a publicly disclosed vulnerability published on September 4, 2026. In the Linux kernel, the following vulnerability has been resolved: selinux: reject an unclaimed class value in securitygetclasses() securitygetclasses() sizes an array by p_classes.nprim and fills it at value - 1, so a class value the policy never defines leaves a NULL. selmakeclasses() passes…
When was CVE-2026-80912 disclosed?
CVE-2026-80912 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-80912 actively exploited?
CVE-2026-80912 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 93.9% of all scored CVEs.
How do I remediate CVE-2026-80912?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-80912, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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