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CVE-2025-41086

6.9 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 1

  1. First seenCVSS 6.9 · gamsNVD modified 2026-10-18 18:10

Affected (CPE criteria) 1

  • cpe:2.3:a:gams:gams:*:*:*:*:*:*:*:*

References 2