7.3

CVE-2026-12912: tiff Heap-based Buffer Overflow

CVSS: 7.3v3.1HighAwaiting analysis
AliasesRHSA-2026:34890RHSA-2026:42668RHSA-2026:47183
Published 29-06-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-12912 is a high (CVSS 7.3) Heap-based Buffer Overflow vulnerability in tiff. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 36.4% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.3/10
010
High · v3.1 (CVE.org)
EPSS score
0.43%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 9
OPENSUSE-SU-2026:11225-1OPENSUSE-SU-2026:21289-1RHSA-2026:41892RHSA-2026:49671SUSE-SU-2026:22590-1SUSE-SU-2026:22616-1

Timeline

  1. 29-06-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

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 metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

0.00 pp

From 0.43% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat10 products
  • compat-libtiff3< 0:3.9.4-16.el8_10 | < 0:3.9.4-13.el8_8.3 | < 0:3.9.4-13.el8_6.3 | < 0:3.9.4-13.el8_4.3 | < 0:3.9.4-12.el7_9.3
  • compat-libtiff3-debuginfo< 0:3.9.4-16.el8_10
  • compat-libtiff3-debugsource< 0:3.9.4-16.el8_10
  • libtiff< 0:4.7.1-2.4.hum1 | < 0:4.4.0-18.el9_8.1 | < 0:4.0.9-38.el8_10 | < 0:4.4.0-13.el9_6.6 | < 0:4.0.9-21.el8_6.3 | < 0:4.0.9-29.el8_8.3 | < 0:4.4.0-8.el9_2.6 | < 0:4.4.0-12.el9_4.6 | < 0:4.0.9-18.el8_4.3 | < 0:4.0.3-35.el7_9.3
  • libtiff-debuginfo< 0:4.4.0-18.el9_8.1 | < 0:4.0.9-38.el8_10 | < 0:4.4.0-13.el9_6.6 | < 0:4.0.9-18.el8_4.3 | < 0:4.0.3-35.el7_9.3
Ubuntu5 products
  • gdalAll versions (No fix recorded)
  • neuronAll versions (No fix recorded)
  • qtwebengine-opensource-srcAll versions (No fix recorded)
  • texmakerAll versions (No fix recorded)
  • tiffAll versions (No fix recorded)
Debian1 product
  • tiffAll versions (No fix recorded) | < 4.7.0-3+deb13u3 | < 4.7.2-1

3 vendors · 16 products

References

56 links
Show all 56 references