CVE-2025-41086

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Source

https://cve.org/CVERecord?id=CVE-2025-41086

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-41086.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2025-41086

Published

2025-12-02T14:16:25.070Z

Modified

2026-03-15T14:52:50.881184Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator

Summary

[none]

Details

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.

References

Affected packages

Git /

Affected ranges

Database specific

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "48.7.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "49.1.0"
            },
            {
                "fixed": "49.7.0"
            }
        ]
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-41086.json"