Answer in brief
CVE-2026-12912 records a High severity (CVSS 7.3) vulnerability in Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image. The current sources do not mark it as known exploited. The current feed maps Red Hat/compat-libtiff3 (generic), Red Hat/libtiff (generic), Red Hat/mingw-libtiff (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Red Hat/compat-libtiff3 (generic), Red Hat/libtiff (generic), Red Hat/mingw-libtiff (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Red Hat/compat-libtiff3generic | * | Not reported |
| Red Hat/libtiffgeneric | * | Not reported |
| Red Hat/mingw-libtiffgeneric | * | Not reported |
Published upstream
Jun 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 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 buffer overflow. This could potentially result in arbitrary code execution or a denial of service (DoS).
Quoted source text, attributed separately from HOL analysis.