Buffer overflow in Red Hat Enterprise Linux 10
CVE-2026-12912
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).
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (35.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Red Hat Enterprise Linux 10 — versions 0:4.6.0-8.el10_2.4
- Red Hat Enterprise Linux 10.0 Extended Update Support — versions 0:4.6.0-6.el10_0.4
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:3.9.4-16.el8_10, 0:4.0.9-38.el8_10
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support — versions 0:3.9.4-13.el8_4.3
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On — versions 0:3.9.4-13.el8_4.3
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support — versions 0:3.9.4-13.el8_6.3
- Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On — versions 0:3.9.4-13.el8_6.3
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service — versions 0:3.9.4-13.el8_8.3
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-12912 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- gitlab.com/libtiff/libtiff/-/merge_requests/873
- gitlab.com/libtiff/libtiff/-/work_items/824
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- access.redhat.com/errata/RHSA-2026:34890 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:41892 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:42668 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:47183 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:47184 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-12912?
- CVE-2026-12912 is a high-severity vulnerability in Red Hat Enterprise Linux 10, classified under Heap-based Buffer Overflow. CVSS score: 7.3/10. Published 2026-06-29.
- How severe is CVE-2026-12912?
- High severity. CVSS v3 base score is 7.3 out of 10.