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CVE-2021-20317

4.4 mediumEPSS 0.4%

Medium (4.4). EPSS 0.4% chance of exploitation in the next 30 days.

A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.

Severity

CVSS 3.1

4.4 medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS
0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
CWE
CWE-665
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON