Use After Free Affecting freebsd package, versions [,14.3.0-p16)[14.4.0,14.4.0-p7)[15.0.0,15.0.0-p11)[15.1.0,15.1.0-p1)


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-UNMANAGED-FREEBSD-19427783
  • published29 Aug 2026
  • disclosed19 Aug 2026
  • creditUnknown

Introduced: 19 Aug 2026

CVE-2026-49422  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade freebsd to version 14.3.0-p16, 14.4.0-p7, 15.0.0-p11, 15.1.0-p1 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free in the setsockopt process. An attacker can gain elevated privileges by triggering a race condition that causes the handler to reference freed memory after switching TCP stacks twice during the window when the connection lock is dropped and reacquired.

CVSS Base Scores

version 4.0
version 3.1