Stack-based Buffer Overflow Affecting freebsd package, versions [,13.5.0-p13)[14.0.0,14.3.0-p12)[14.4.0,14.4.0-p3)[15.0.0,15.0.0-p7)
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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- published30 Apr 2026
- disclosed30 Apr 2026
- creditUnknown
Introduced: 30 Apr 2026
CVE-2026-39457 (opens in a new tab)How to fix?
Upgrade freebsd to version 13.5.0-p13, 14.3.0-p12, 14.4.0-p3, 15.0.0-p7 or higher.
Overview
Affected versions of this package are vulnerable to Stack-based Buffer Overflow due to improper validation of file descriptor values in the select process. An attacker can cause stack corruption and potentially escalate local privileges by forcing the allocation of large file descriptors and executing a program that does not properly close them upon startup. This is only exploitable if the target application is setuid-root.