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cve recordhigh

CVE-2026-49428

freebsd · freebsd

Published
CVSS8.4
Severityhigh
WeaknessCWE-915
ExploitedNot in CISA KEV

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Certain system calls, such open(2) with the O_TRUNC flag set, and fspacectl(2), could incorrectly free memory in largepage objects. These operations are not permitted on largepage objects, but the implementation did not verify this. An unprivileged local user can abuse the bug to access freed kernel memory. This can be exploited to escalate privileges.

References

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