CVE-2020-28974: Debian Linux
Medium severity, CVSS 5.0. EPSS: 0.5% chance of exploitation in the next 30 days.
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.
Affected products
Published 2020-11-20. Last modified 2026-06-17.