CVE-2025-9900

CVE-2025-9900 · Libtiff: libtiff write-what-where

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This page shows selected source facts. See the linked advisories for the complete description and affected versions.

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.

CVSS 8.8 · High · EPSS 1.0% · Fix available

Published

2025-09-23T16:26:22.846Z

Updated

2026-06-29T20:48:58.876Z

Stack: system

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