Infinite loop in Wireshark - CVE-2026-6531
Published: April 30, 2026
Vulnerability identifier: #VU128559
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-6531
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in the SANE protocol dissector. A remote attacker can consume all available system resources and cause denial of service conditions.
Affected software
Wireshark
How to mitigate CVE-2026-6531
Install updates from vendor's website.
Wireshark - addressed in versions 4.4.15, 4.6.5