Wireshark HTTP3 dissector DoS (4.6.0-4.6.1)
CVE-2025-13945 Published on December 3, 2025
Improperly Controlled Sequential Memory Allocation in Wireshark
HTTP3 dissector crash in Wireshark 4.6.0 and 4.6.1 allows denial of service
Vulnerability Analysis
CVE-2025-13945 can be exploited 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
What is a Stack Exhaustion Vulnerability?
The product manages a group of objects or resources and performs a separate memory allocation for each object, but it does not properly limit the total amount of memory that is consumed by all of the combined objects.
CVE-2025-13945 has been classified to as a Stack Exhaustion vulnerability or weakness.
Products Associated with CVE-2025-13945
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Affected Versions
Wireshark Foundation Wireshark:- Version 4.6.0 and below 4.6.1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.