CVE-2026-43267

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

CVE-2026-43267 is fixed in linux on 1 platform by DEBIAN-CVE-2026-43267 (version 6.19.6-1), released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.0

Important

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0012

1st percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
linux · Debian 14	6.19.6-1	DEBIAN-CVE-2026-43267	May 15, 2026

Details

Published
May 6, 2026
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-43267

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