Improper Privilege Management Affecting freebsd package, versions [,14.3.0-p15)[14.4.0,14.4.0-p6)[15.0.0,15.0.0-p10)[15.1.0,15.1-RC3-p1)
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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- published28 Jun 2026
- disclosed26 Jun 2026
- creditUnknown
Introduced: 26 Jun 2026
CVE-2026-45256 (opens in a new tab)How to fix?
Upgrade freebsd to version 14.3.0-p15, 14.4.0-p6, 15.0.0-p10, 15.1-RC3-p1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Privilege Management due to the lack of a permission check in the thr_kill2 system call. An attacker can send arbitrary signals to processes they do not own, including those owned by other users or root, by guessing or brute-forcing process and thread IDs. This can allow stopping or terminating critical system processes, potentially disrupting system availability. This is only exploitable if the attacker has local access and can determine or guess valid process and thread IDs.