CVE-2020-28974

PoC —

CVSS 3.1

5.0 medium

EPSS

<1%p42

Published

Nov 20, 2020 (Nov 20, 2020)

Modified

Jun 17, 2026

Description

A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height.

Vendors: linux debian
Products: linux kernel, debian linux
Weakness: CWE-125
Vector: CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H

NVD CVE.org GitHub PoCs EPSS (0.5%)

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