Feed/CVE-2021-33574
CVE-2021-33574CRITICALCVSS 9.8

CVE-2021-33574

Published May 25, 2021·Updated Jun 16, 2026

NVD Description

The mq_notify function in the GNU C Library (aka glibc) versions 2.32 and 2.33 has a use-after-free. It may use the notification thread attributes object (passed through its struct sigevent parameter) after it has been freed by the caller, leading to a denial of service (application crash) or possibly unspecified other impact.

CVSS Vector

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

References

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