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7.5
Wireshark: RF4CE Protocol Handling Causes Application Crash
CVE-2026-3203
Summary
A bug in Wireshark, a network traffic analyzer, can crash the application when processing certain types of data from RF4CE devices. This can happen when analyzing network traffic containing specific patterns. To avoid the issue, update to a recent version of Wireshark.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| wireshark | wireshark | > 4.4.0 , <= 4.4.14 | – |
| wireshark | wireshark | > 4.6.0 , <= 4.6.4 | – |
Original title
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
Original description
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
nvd CVSS3.1
7.5
Vulnerability type
CWE-126
- https://gitlab.com/wireshark/wireshark/-/issues/21009 Issue Tracking
- https://www.wireshark.org/security/wnpa-sec-2026-07.html Vendor Advisory
Published: 25 Feb 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026