CVE-2025-8851 LibTIFF tiffcrop tiffcrop.c readSeparateStripsetoBuffer stack-based overflow
A stack-based buffer overflow in LibTIFF's tiffcrop tool allows local attackers to execute arbitrary code or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-8851?
CVE-2025-8851 is a medium-severity memory corruption vulnerability in Libtiff Libtiff, published on 11 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was determined in LibTIFF up to 4.5.1. Affected by this issue is the function readSeparateStripsetoBuffer of the file tools/tiffcrop.c of the component tiffcrop. The manipulation leads to stack-based buffer overflow. Local access is required to approach this attack. The patch is identified as 8a7a48d7a645992ca83062b3a1873c951661e2b3. It is recommended to apply a patch to fix this issue.
Which versions are affected by CVE-2025-8851?
It affects 1 product.
Linux distribution packages (2)
tiff SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 | All versions | 4.0.9-44.106.1 |
tiff openSUSE:Tumbleweed | All versions | 4.7.1-3.1 |
Products include Libtiff Libtiff.
How do I fix CVE-2025-8851?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-8851 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8851 exists.
Other vulnerabilities in Libtiff Libtiff
Sources
Also known as AZL-66258, AZL-66282, CLSA-2026-1787932569, DEBIAN-CVE-2025-8851, ECHO-0263-9519-53e9, GHSA-mcqf-6qjh-v78v and 6 more.