CVE-2026-49425mediumCWE-908

CVE-2026-49425: medium-severity vulnerability in FreeBSD

Kernel stack disclosure in 32-bit compatibility support

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.5epss 0.2%
The compat32 kevent() handler translates a 64-bit kevent struct into a stack- declared 32-bit struct. It did not first zero the stack struct. An unprivileged user may observe a small amount of uninitialized kernel stack data, which may contain sensitive information.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products
FreeBSD · FreeBSD
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