Libtiff: libtiff write-what-where

Summary

A flaw was found in Libtiff. This vulnerability is a "write-what-where" condition, triggered when the library processes a specially crafted TIFF image file. By providing an abnormally large image height value in the file's metadata, an attacker can trick the library into writing attacker-controlled color data to an arbitrary memory location. This memory corruption can be exploited to cause a denial of service (application crash) or to achieve arbitrary code execution with the permissions of the user.

Timeline

1. Sep 23, 2025, 12:00 AM UTCCISA SSVC assessment

   Exploitation: poc · Automatable: no · Technical impact: total

2. Sep 23, 2025, 4:26 PM UTCCVE published
3. Jun 29, 2026, 8:48 PM UTCRecord last updated

Affected versions

• libtiff

  fixed in 4.7.1

• libtiff

  Version range not reported

• libtiff

  Version range not reported

• compat-libtiff3

  Version range not reported

• libtiff

  Version range not reported

• compat-libtiff3

  Version range not reported

• libtiff

  Version range not reported

• mingw-libtiff

  Version range not reported

• compat-libtiff3

  Version range not reported

• libtiff

  Version range not reported

• spice-client-win

  Version range not reported

• compat-libtiff3

  Version range not reported

• libtiff

  Version range not reported

• spice-client-win

  Version range not reported

• compat-libtiff3

  Version range not reported

• libtiff

  Version range not reported

• spice-client-win

  Version range not reported

• compat-libtiff3

  Version range not reported

• libtiff

  Version range not reported

• spice-client-win

  Version range not reported

• compat-libtiff3

  Version range not reported

• libtiff

  Version range not reported

• spice-client-win

  Version range not reported

• compat-libtiff3

  Version range not reported

• libtiff

  Version range not reported

• spice-client-win

  Version range not reported

• compat-libtiff3

  Version range not reported

• libtiff

  Version range not reported

• spice-client-win

  Version range not reported

• compat-libtiff3

  Version range not reported

• libtiff

  Version range not reported

• spice-client-win

  Version range not reported

• libtiff

  Version range not reported

• libtiff

  Version range not reported

• libtiff

  Version range not reported

• libtiff

  Version range not reported

• libtiff

  Version range not reported

• rhaiis/vllm-cuda-rhel9

  Version range not reported

• rhaiis/vllm-rocm-rhel9

  Version range not reported

• rhaiis/model-opt-cuda-rhel9

  Version range not reported

• rhaiis/vllm-cuda-rhel9

  Version range not reported

• rhaiis/vllm-rocm-rhel9

  Version range not reported

• discovery/discovery-ui-rhel9

  Version range not reported

• libtiff-main

  Version range not reported

• libtiff

  Version range not reported

References 25