Use After Free 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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Test your applications- Snyk IDSNYK-UNMANAGED-FREEBSD-17660812
- published28 Jun 2026
- disclosed27 Jun 2026
- creditUnknown
Introduced: 27 Jun 2026
CVE-2026-49412 (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 Use After Free in the IPV6_MSFILTER socket option handler due to dropping and reacquiring a serializing lock while copying the source-filter list from userspace. An attacker can gain elevated privileges by exploiting a race condition that allows access to freed memory.