PT-2026-35496 · Linux · Linux Kernel

Published 2026-04-27 · Updated 2026-04-28 · CVE-2026-31690

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A buffer overflow exists in the TH1520 AON firmware protocol driver. The issue occurs because the code uses unsafe pointer arithmetic to access the mode field through the resource pointer with an offset. Additionally, the driver used custom RPC SET BE* and RPC GET BE* macros instead of standard kernel endianness conversion macros.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-31690

Affected Products

Linux Kernel

References · 13

• https://git.kernel.org/stable/c/fbdb43f6bb2a15ed382d6eb0ef82c8b07b0d47bb · Patch
• https://git.kernel.org/stable/c/bd15a5deb5a7251dc1a0cf9186f0253f7eacdb97 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31690 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-31690 · Security Note
• https://ubuntu.com/security/CVE-2026-31690 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31690 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-31690 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31690 · Vendor Advisory
• https://git.kernel.org/stable/c/88c4bd90725557796c15878b7cb70066e9e6b5ab · Patch
• https://git.kernel.org/linus/88c4bd90725557796c15878b7cb70066e9e6b5ab · Note
• https://twitter.com/VulmonFeeds/status/2048970680843055330 · Twitter Post
• https://twitter.com/vuldb/status/2048834712417054908 · Twitter Post
• https://twitter.com/CVEnew/status/2048852120099500205 · Twitter Post