CVE-2025-8836: Jasper Project Jasper

Low severity, CVSS 3.3. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability was determined in JasPer up to 4.2.5. Affected by this issue is the function jpc_floorlog2 of the file src/libjasper/jpc/jpc_enc.c of the component JPEG2000 Encoder. The manipulation leads to reachable assertion. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The patch is identified as 79185d32d7a444abae441935b20ae4676b3513d4. It is recommended to apply a patch to fix this issue.

Affected products

• Jasper Project Jasper: up to and including 4.2.5

Published 2025-08-11. Last modified 2026-06-17.