๐Ÿ›ก๏ธ CVE-2025-41086
๐ŸŸก CVSS 6.5 โ€” Medium โœ… No Known Exploit CWE-639 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Vulnerability in the access control system of the GAMS licensing system that allows unlimited valid licenses to be generated, bypassing any usage restrictions. The validator uses an insecure checksum algorithm; knowing this algorithm and the format of the license lines, an attacker can recalculate the checksum and generate a valid license to grant themselves full privileges without credentials or access to the source code, allowing them unrestricted access to GAMS's mathematical models and commercial solvers.

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE CWE-639
Public Exploit โœ… No
Source NVD
Published 2025-12-02
Updated 2026-06-02
Modified 2026-02-03
Fix URL N/A

Affected Packages

Software From version Fixed in
gams 49.1.0 49.7.0

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