CVE-2026-43267

wifi: rtw89: fix potential zero beacon interval in beacon tracking

MEDIUM
5.5
CVSS Score
Published: May 6, 2026 at 11:28 AM UTC
Updated: June 17, 2026 at 10:49 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: fix potential zero beacon interval in beacon tracking During fuzz testing, it was discovered that bss_conf->beacon_int might be zero, which could result in a division by zero error in subsequent calculations. Set a default value of 100 TU if the interval is zero to ensure stability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.18 ≤ v < 6.18.166.18 ≤ v < 6.19.66.18 ≤ v < 7.06.19 ≤ v < 6.19.66.18d360551f265e3c942ce06cd6f4d2f7f67741bcbd
Vendor states this is fixed in 1260bee01493126cf9c872b6ca2af261173baa6d (fixed)
Vendor states this is fixed in e00c9a4ec84c0bb067833b34202f457badbbc1c1 (fixed)
Vendor states this is fixed in eb57be32f438c57c88d6ce756101c1dfbcc03bba (fixed)
Vendor states this is fixed in 6.18 (unaffected)
Vendor states this is fixed in 6.18.16 (unaffected)
Vendor states this is fixed in 6.19.6 (unaffected)
Vendor states this is fixed in 7.0 (unaffected)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-369

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