CVE-2025-8836

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.

• CWE-617

• https://drive.google.com/file/d/1pPgndhHh2z0lk99Wt31W-XIW3XWt8FB3/view?usp=drive_linkExploit
• https://github.com/jasper-software/jasper/commit/79185d32d7a444abae441935b20ae4676b3513d4Patch
• https://github.com/jasper-software/jasper/issues/401Exploit, Issue Tracking, Vendor Advisory
• https://vuldb.com/?ctiid.319370Permissions Required, VDB Entry
• https://vuldb.com/?id.319370Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.622409Exploit, Third Party Advisory, VDB Entry
• https://github.com/jasper-software/jasper/issues/401Exploit, Issue Tracking, Vendor Advisory

Published

Aug 11, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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