AUGUST 4, 2026
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Case File

CVE-2021-20317

MEDIUM · CVSS 4.4 EPSS 0.40%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-27 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2021-20317
Severity
MEDIUM
CVSS
4.4
EPSS
0.40%
Linux

Original NVD Description

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.