PT-2026-78857 · Wireshark · Wireshark

Aisle Research

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CVE-2026-76921

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Published

2026-08-12

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Updated

2026-08-30

CVSS v3.1

8.1

High

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Wireshark versions 4.6.0 through 4.6.7 Wireshark versions 4.4.0 through 4.4.18
Description A Use After Free issue in the CMS protocol dissector can lead to a crash, resulting in a denial of service.
Recommendations Update Wireshark versions 4.6.0 through 4.6.7 to a newer version. Update Wireshark versions 4.4.0 through 4.4.18 to a newer version.

Exploit

Fix

DoS

Memory Corruption

Use After Free

Found an issue in the description? Have something to add? Feel free to write us 👾
dbugs@ptsecurity.com

Weakness Enumeration

CWE-787CWE-416

Related Identifiers

AZL-96930
BDU:2026-12621
CVE-2026-76921
OESA-2026-3584
OPENSUSE-SU-2026:11579-1

Affected Products

Wireshark