CVE-2020-25668: Debian Linux

High severity, CVSS 7.0. EPSS: 1% chance of exploitation in the next 30 days.

A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.

Affected products

• Debian Debian Linux: version 9.0 only
• Linux Linux Kernel: before 4.4.242 (fixed in 4.4.242); from 4.5, before 4.9.242 (fixed in 4.9.242); from 4.10, before 4.14.204 (fixed in 4.14.204); from 4.15, before 4.19.155 (fixed in 4.19.155); from 4.20, before 5.4.75 (fixed in 5.4.75); from 5.5, before 5.9.5 (fixed in 5.9.5)
• Netapp 500f Firmware: affected versions not specified
• Netapp a250 Firmware: affected versions not specified
• Netapp Cloud Backup: affected versions not specified
• Netapp h300e Firmware: affected versions not specified
• Netapp h300s Firmware: affected versions not specified
• Netapp h410c Firmware: affected versions not specified
• Netapp h410s Firmware: affected versions not specified
• Netapp h500e Firmware: affected versions not specified
• Netapp h500s Firmware: affected versions not specified
• Netapp h700e Firmware: affected versions not specified
• Netapp h700s Firmware: affected versions not specified
• Netapp Solidfire & Hci Management Node: affected versions not specified
• Netapp Solidfire Baseboard Management Controller Firmware: affected versions not specified

Published 2021-05-26. Last modified 2026-06-17.