PT-2026-37607 · Linux · Linux Kernel

Published 2026-05-06 · Updated 2026-05-08 · CVE-2026-43267

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description A division by zero error can occur in the rtw89 WiFi driver during beacon tracking. This happens when the bss conf->beacon int variable is zero, which can lead to a kernel crash. The issue was identified during fuzz testing, a process of providing invalid or random data to a program to find bugs.

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

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

CVE-2026-43267

Affected Products

Linux Kernel

References · 12

• https://security-tracker.debian.org/tracker/CVE-2026-43267 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43267 · Security Note
• https://git.kernel.org/stable/c/1260bee01493126cf9c872b6ca2af261173baa6d · Patch
• https://git.kernel.org/stable/c/eb57be32f438c57c88d6ce756101c1dfbcc03bba · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43267 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43267 · Vendor Advisory
• https://git.kernel.org/stable/c/e00c9a4ec84c0bb067833b34202f457badbbc1c1 · Patch
• https://ubuntu.com/security/CVE-2026-43267 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-43267 · Security Note
• https://twitter.com/windowsforum/status/2052323516398154133 · Twitter Post
• https://git.kernel.org/linus/eb57be32f438c57c88d6ce756101c1dfbcc03bba · Note
• https://t.me/cveNotify/162796 · Telegram Post