CVE-2025-8836 - CVE House
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Status published Medium CVE-2025-8836

JasPer JPEG2000 Encoder jpc_enc.c jpc_floorlog2 assertion

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • nipc-cxd (VulDB User)

Affected Vendor

Affected Software

JasPer
Vulnerable Versions:
4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.2.5

Timeline

Official Publish: August 11th, 2025
Last Modified: August 12th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

Weaknesses (CWE)