Wireshark 4.6.x & 4.4.x SHARKD Crash (DoS) until 4.6.5/4.4.15
CVE-2026-7378 Published on April 30, 2026
Heap-based Buffer Overflow in Wireshark
Crash in sharkd 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Vulnerability Analysis
CVE-2026-7378 is exploitable with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. 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
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Products Associated with CVE-2026-7378
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Affected Versions
Wireshark Foundation Wireshark:- Version 4.6.0 and below 4.6.5 is affected.
- Version 4.4.0 and below 4.4.15 is affected.