SB2026050753 - Division by zero in Linux kernel realtek rtw89 driver
Published: May 7, 2026
Security Bulletin ID
SB2026050753
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Division by zero (CVE-ID: CVE-2026-43267)
CWE-ID: CWE-369 - Divide By Zero
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to cause a denial of service.
The vulnerability exists due to division by zero in beacon tracking when processing a zero beacon interval. A local attacker can trigger the condition to cause a denial of service.
The issue was discovered during fuzz testing.
Remediation
Install update from vendor's website.