Medium 5.5Published May 6, 2026

CVE-2026-43267wifi: rtw89: fix potential zero beacon interval in beacon tracking

Updated under an hour ago (Oct 27, 2026, 2:23 PM ET)

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Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from d360551f265e3c942ce06cd6f4d2f7f67741bcbd before 1260bee01493126cf9c872b6ca2af261173baa6d; from d360551f265e3c942ce06cd6f4d2f7f67741bcbd before e00c9a4ec84c0bb067833b34202f457badbbc1c1; from d360551f265e3c942ce06cd6f4d2f7f67741bcbd before eb57be32f438c57c88d6ce756101c1dfbcc03bba	CNA record
linux linux_kernel linux:linux_kernel	from 6.18 before 6.18.16; from 6.19 before 6.19.6	NVD

References

References

https://git.kernel.org/stable/c/1260bee01493126cf9c872b6ca2af261173baa6d	patch
https://git.kernel.org/stable/c/e00c9a4ec84c0bb067833b34202f457badbbc1c1	patch
https://git.kernel.org/stable/c/eb57be32f438c57c88d6ce756101c1dfbcc03bba	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.