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wnpa-sec-2026-31 · DCP-ETSI protocol dissector crash

Summary

Name: DCP-ETSI protocol dissector crash

Docid: wnpa-sec-2026-31

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 21144.
CVE-2026-6530.

Details

Description

The DCP ETSI protocol dissector could crash.

Impact

Discovered by Alexandre de Oliveira. 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 a malformed packet trace file.

Resolution

Upgrade to Wireshark 4.6.5, 4.4.15 or later.