Improper Update of Reference Count Affecting freebsd package, versions [,15.0.0-p11)[15.1.0,15.1.0-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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- published29 Aug 2026
- disclosed19 Aug 2026
- creditUnknown
Introduced: 19 Aug 2026
NewCVE-2026-49419 (opens in a new tab)How to fix?
Upgrade freebsd to version 15.0.0-p11, 15.1.0-p1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Update of Reference Count in the kern_jail_set and kern_jail_get processes when the JAIL_AT_DESC flag is specified. An attacker can cause the reference count for a prison structure to underflow by triggering error-handling paths that release the same reference multiple times, potentially leading to the structure being freed while still in use. This can result in a system panic or, if executed from within a jail, may allow privilege escalation.