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wnpa-sec-2026-53 · pcapng file parser crash

Summary

Name: pcapng file parser crash

Docid: wnpa-sec-2026-53

Date: July 8, 2026

Affected versions: 4.6.0 to 4.6.6

Fixed versions: 4.6.7

References:

Wireshark issue 21285.
CVE-2026-15173.

Details

Description

The pcapng file parser could crash.

Impact

Discovered by Mitchell Benjamin. We are unaware of any exploits for this issue. It may be possible to make Wireshark crash by convincing someone to read a malformed packet trace file.

Resolution

Upgrade to Wireshark 4.6.7 or later.