Wireshark 4.6.6 IEEE 802.11 dissector DoS crash
CVE-2026-15166 Published on July 8, 2026
Stack-based Buffer Overflow in Wireshark
IEEE 802.11 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
Vulnerability Analysis
CVE-2026-15166 is exploitable with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2026-15166. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2026-15166 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2026-15166
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Affected Versions
Wireshark Foundation Wireshark:- Version 4.6.0 and below 4.6.7 is affected.
- Version 4.4.0 and below 4.4.17 is affected.