P4Verified

CVE-2021-34556: linux kernel through 5.13.7 (inclusive); +3 more affected products

CVE-2021-34556. CVSS 3.1 base score 5.5 (MEDIUM, NVD). EPSS 0.00419 (percentile 0.34239), scored 2026-10-08.

Affected technology

linux kernel · through 5.13.7 (inclusive)
linux

fedora · 33
fedoraproject

fedora · 34
fedoraproject

debian linux · 9.0
debian

n/a · n/a
Vendor not specified by the source

Description’s affected range: through 5.13.7

Component: Not specified by the source

Attack conditions (NVD, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

NVD’s CVSS 3.1 assessment (base score 5.5/10) rates confidentiality impact as high; integrity and availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 2026-10-09 03:15:33.230868+00:00

CWE: CWE-203
CCR priority: 22.1 /100 (P4)
CVSS 3.1: 5.5 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · NVD
EPSS: 0.00419 · percentile 0.34239 · 2026-10-08
KEV: no

Provenance

GitHub Advisory Database · Source record · observed 2026-10-09 03:17:07.463462+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-09 03:13:32.966430+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2021-34556.html