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TI-2025-21181 Aliases CVE-2025-29769

libvips has a potential heap-based buffer overflow when attempting to convert multiband TIFF input to HEIF output

Priority LOW 39CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

libvips is a demand-driven, horizontally threaded image processing library. The heifsave operation could incorrectly determine the presence of an alpha channel in an input when it was not possible to determine the colour interpretation, known internally within libvips as "multiband". There aren't many ways to create a "multiband" input, but it is possible with a well-crafted TIFF image. If a "multiband" TIFF input image had 4 channels and HEIF-based output was requested, this led to libvips creating a 3 channel HEIF image without an alpha channel but then attempting to write 4 channels of data. This caused a heap buffer overflow, which could crash the process. This vulnerability is fixed in 8.16.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00291 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed libvips (libvips): 8.16.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
libvipslibvipsbefore 8.16.18.16.1Patch availableCNA
  • libvips Vendorlibvips Affected before 8.16.1 Fixed in 8.16.1 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:libvips:libvips:*:*:*:*:*:*:*:*before 8.16.1Vulnerablelibvips
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
  • cpe:2.3:a:libvips:libvips:*:*:*:*:*:*:*:* Versions before 8.16.1 Vulnerable ·libvips
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian

Remediation

  • Fix · CNA libvips (libvips) Fixed in 8.16.1

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-29769

References

Exploit 1

Patch 2

Advisory 1

Other 2

  • TI-2026-02835 libvips extract.c vips_extract_area_build integer overflow CVSS 4.0MEDIUM 4.8
  • TI-2026-02834 libvips extract.c vips_extract_band_build out-of-bounds CVSS 4.0MEDIUM 4.8
  • TI-2026-02833 libvips unpremultiply.c vips_unpremultiply_build out-of-bounds CVSS 4.0MEDIUM 4.8
  • TI-2026-02832 libvips bandrank.c vips_bandrank_build heap-based overflow CVSS 4.0MEDIUM 4.8
  • TI-2026-02719 libvips csvload.c vips_foreign_load_csv_build heap-based overflow CVSS 4.0MEDIUM 4.8
  • TI-2026-02718 libvips matrixload.c vips_foreign_load_matrix_header null pointer dereference CVSS 4.0MEDIUM 4.8
See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences