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
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-16874113
- published25 May 2026
- disclosed21 May 2026
- creditJoshua Rogers
Introduced: 21 May 2026
CVE-2026-39461 (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 in the select process. An attacker can cause stack corruption and potentially escalate local privileges by causing an application to allocate a large number of file descriptors, exceeding the FD_SETSIZE limit, which leads to a stack overflow when the process does not properly verify descriptor bounds. This is only exploitable if an attacker can influence the number of open file descriptors and the application is running with elevated privileges.