Stack-based Buffer Overflow Affecting freebsd package, versions [,14.3.0-p14)[14.4.0,14.4.0-p5)[15.0.0,15.0.0-p9)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-FREEBSD-16874116
- published25 May 2026
- disclosed21 May 2026
- creditPrzemyslaw Frasunek, Ryan
Introduced: 21 May 2026
CVE-2026-45250 (opens in a new tab)How to fix?
Upgrade freebsd to version 14.3.0-p14, 14.4.0-p5, 15.0.0-p9 or higher.
Overview
Affected versions of this package are vulnerable to Stack-based Buffer Overflow via the setcred system call. An attacker can execute arbitrary code with kernel privileges by supplying an excessively long list of supplementary groups, which is copied into a fixed-size kernel stack buffer before proper bounds checking is performed. This allows an unprivileged local user to gain elevated privileges on the affected system.