CVE-2025-41086 — Authorization bypass in GAMS from GAMS Development Corp.
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 use…
Published: 2025-12-02 · CVSS: 6.9 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7