Wireshark RF4CE Profile Dissector DoS in 4.4.0-4.4.13 & 4.6.0-4.6.3
CVE-2026-3203 Published on February 25, 2026
Buffer Over-read in Wireshark
RF4CE Profile protocol dissector crash in Wireshark 4.6.0 to 4.6.3 and 4.4.0 to 4.4.13 allows denial of service
Vulnerability Analysis
CVE-2026-3203 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
Buffer Over-read
The software reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. This typically occurs when the pointer or its index is incremented to a position beyond the bounds of the buffer or when pointer arithmetic results in a position outside of the valid memory location to name a few. This may result in exposure of sensitive information or possibly a crash.
Products Associated with CVE-2026-3203
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Affected Versions
Wireshark Foundation Wireshark:- Version 4.6.0 and below 4.6.4 is affected.
- Version 4.4.0 and below 4.4.14 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.