AUGUST 4, 2026
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Case File

CVE-2021-28971

MEDIUM · CVSS 5.5 EPSS 0.39%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-03-22 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.5. It affects Linux.

CVE
CVE-2021-28971
Severity
MEDIUM
CVSS
5.5
EPSS
0.39%
Linux

Original NVD Description

In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6.

Related CVEs

Other vulnerabilities affecting the same vendor(s)