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wnpa-sec-2026-15 · K12 RF5 file parser crash

Summary

Name: K12 RF5 file parser crash

Docid: wnpa-sec-2026-15

Date: April 29, 2026

Affected versions: 4.6.0 to 4.6.4, 4.4.0 to 4.4.14

Fixed versions: 4.6.5, 4.4.15

References:

Wireshark issue 21094.
CVE-2026-5404.

Details

Description

The K12 RF5 file parser could crash.

Impact

Discovered by Brendan Coles. We are unaware of any exploits for this issue. It may be possible to make Wireshark crash by injecting a malformed packet onto the wire or by convincing someone to read and export a malformed packet trace file.

Resolution

Upgrade to Wireshark 4.6.5, 4.4.15 or later.