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wnpa-sec-2026-93 · SCTP protocol dissector crash

Summary

Name: SCTP protocol dissector crash

Docid: wnpa-sec-2026-93

Date: September 23, 2026

Affected versions: 4.6.0 to 4.6.8, 4.4.0 to 4.4.18

Fixed versions: 4.6.9, 4.4.19

References:

Wireshark issue 21481.
CVE-2026-95389.

Details

Description

The SCTP protocol dissector could crash.

Impact

Discovered by Security research assessment of Wireshark internals (Feng Xue). 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 4.6.9, 4.4.19 or later.