CVE-2026-12912

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-06-29. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.3Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw was found in libtiff. A remote attacker could exploit this vulnerability by providing a specially crafted PixarLog-compressed TIFF image. This issue occurs when decoding Pixarlog codec images with the PIXARLOGDATAFMT_8BITABGR output format and a specific stride value, leading to a heap-based buffer overflow. This could potentially result in arbitrary code execution or a denial of service (DoS).

CVSS v3
7.3
EG Score
7.3(high)
EPSS
13.9%
KEV
Not listed

Published

June 29, 2026

Last Modified

July 3, 2026

Advisory Details (4)

Auto-updated Jun 29, 2026
Patch available. Sources: redhat.
generic

Heap buffer-overflow in `PixarLogDecode` with `PIXARLOGDATAFMT_8BITABGR` format (#824) · Issues · libtiff / libtiff · GitLab

https://gitlab.com/libtiff/libtiff/-/work_items/824
generic

pixarlog: fix heap-buffer-overflow in 8BITABGR decode with stride 3 (#824) (!873) · Merge requests · libtiff / libtiff · GitLab

https://gitlab.com/libtiff/libtiff/-/merge_requests/873
redhat

2492871 – (CVE-2026-12912) CVE-2026-12912 libtiff: libtiff: Heap-based buffer overflow via crafted PixarLog-compressed TIFF image

https://bugzilla.redhat.com/show_bug.cgi?id=2492871
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-12912

Vendor Advisories for CVE-2026-12912(2)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatlibtiff-main-4.7.1-2.4.hum12026-07-02redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Data Freshness Timeline

(refreshed 47× in last 7d / 49× 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. 2026-07-06 18:55 UTCEG score recompute
  2. 2026-07-06 18:55 UTCVendor advisory
  3. 2026-07-06 18:55 UTCGHSA enrichment
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 07:41 UTCEG score recompute
  6. 2026-07-06 07:41 UTCVendor advisory
  7. 2026-07-06 07:40 UTCGHSA enrichment
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-05 20:25 UTCEG score recompute
  10. 2026-07-05 20:25 UTCVendor advisory
  11. 2026-07-05 20:25 UTCGHSA enrichment
  12. 2026-07-05 09:11 UTCEG score recompute
  13. 2026-07-05 09:11 UTCVendor advisory
  14. 2026-07-05 09:10 UTCGHSA enrichment
  15. 2026-07-05 02:30 UTCEPSS rescore
  16. 2026-07-05 02:30 UTCEPSS rescore
  17. 2026-07-04 21:45 UTCEG score recompute
  18. 2026-07-04 21:45 UTCVendor advisory
  19. 2026-07-04 21:45 UTCGHSA enrichment
  20. 2026-07-04 10:31 UTCEG score recompute
  21. 2026-07-04 10:31 UTCVendor advisory
  22. 2026-07-04 10:31 UTCGHSA enrichment
  23. 2026-07-04 06:31 UTCEPSS rescore
  24. 2026-07-03 23:15 UTCEG score recompute
  25. 2026-07-03 23:15 UTCVendor advisory
Show 24 more
  1. 2026-07-03 23:15 UTCGHSA enrichment
  2. 2026-07-03 12:00 UTCEG score recompute
  3. 2026-07-03 12:00 UTCVendor advisory
  4. 2026-07-03 12:00 UTCGHSA enrichment
  5. 2026-07-03 00:19 UTCEG score recompute
  6. 2026-07-03 00:19 UTCVendor advisory
  7. 2026-07-03 00:19 UTCGHSA enrichment
  8. 2026-07-02 13:05 UTCEG score recompute
  9. 2026-07-02 13:05 UTCGHSA enrichment
  10. 2026-07-02 01:49 UTCEG score recompute
  11. 2026-07-02 01:48 UTCGHSA enrichment
  12. 2026-07-01 15:06 UTCEPSS rescore
  13. 2026-07-01 15:06 UTCEPSS rescore
  14. 2026-07-01 14:34 UTCEG score recompute
  15. 2026-07-01 14:33 UTCGHSA enrichment
  16. 2026-07-01 03:19 UTCEG score recompute
  17. 2026-07-01 03:19 UTCGHSA enrichment
  18. 2026-06-30 23:22 UTCEPSS rescore
  19. 2026-06-30 16:04 UTCEG score recompute
  20. 2026-06-30 16:04 UTCGHSA enrichment
  21. 2026-06-30 04:50 UTCEG score recompute
  22. 2026-06-30 04:50 UTCGHSA enrichment
  23. 2026-06-29 17:19 UTCEG score recompute
  24. 2026-06-29 17:17 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-12912?
CVE-2026-12912 is a high vulnerability published on June 29, 2026. A flaw was found in libtiff. A remote attacker could exploit this vulnerability by providing a specially crafted PixarLog-compressed TIFF image. This issue occurs when decoding Pixarlog codec images with the PIXARLOGDATAFMT_8BITABGR output format and a specific stride value, leading to a heap-based…
When was CVE-2026-12912 disclosed?
CVE-2026-12912 was first published in the National Vulnerability Database on June 29, 2026, with the most recent update on July 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12912 actively exploited?
CVE-2026-12912 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-12912?
CVE-2026-12912 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-12912?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12912, 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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