Vulnerability details
CVE-2026-12912
Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8
Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image
CVSS 3.1
7.3High
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.3High | 3.1 | CVEProject cvelistV5 (CNA) (redhat) | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
| 7.3High | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 7 | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat Enterprise Linux 7 | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat Enterprise Linux 8 | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat Enterprise Linux 8 | All | CVEProject cvelistV5 (CNA) |
References and advisories
34- https://access.redhat.com/errata/RHSA-2026:69292 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:73909 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:73959 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:73960 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:73961 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:73962 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:74458 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:74459 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:74460 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:74461 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:74462 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:74463 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:74674 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:83550 vendor-advisoryx_refsource_REDHAT
- https://gitlab.com/libtiff/libtiff/-/merge_requests/873
- https://gitlab.com/libtiff/libtiff/-/work_items/824
- https://access.redhat.com/security/cve/CVE-2026-12912 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2492871 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12912.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:61657 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:49671 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:41892 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:47183 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:47184 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:54642 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:54640 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:58545 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:54638 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:58553 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:58554 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:58556 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:50774 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:42668 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:34890 vendor-advisoryx_refsource_REDHAT
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Details
- Published
- 2026-06-29
- Last updated
- 2026-11-05
- State
- Published
- Assigner (CNA)
- redhat
Exploit prediction (EPSS)
0.43%
Probability of exploitation in 30 days
37.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-122Heap-based Buffer Overflow