CVE-2025-8176: LibTIFF tiffmedian.c get_histogram use after free

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-07-26 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability was found in LibTIFF up to 4.7.0. It has been declared as critical. This vulnerability affects the function get_histogram of the file tools/tiffmedian.c. The manipulation leads to use after free. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The patch is identified as fe10872e53efba9cc36c66ac4ab3b41a839d5172. It is recommended to apply a patch to fix this issue.

Affected products

libtiff: through 4.7.0

References

http://www.libtiff.org/
https://gitlab.com/libtiff/libtiff/-/commit/fe10872e53efba9cc36c66ac4ab3b41a839d5172
https://gitlab.com/libtiff/libtiff/-/issues/707
https://gitlab.com/libtiff/libtiff/-/merge_requests/727
https://vuldb.com/?ctiid.317590
https://vuldb.com/?id.317590
https://vuldb.com/?submit.621796

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