What is CVE-2026-96422?

CVE-2026-96422 is a medium-severity vulnerability in Wireshark Foundation, classified under Reachable Assertion. CVSS score: 5.5/10. Published 2026-09-29.

How severe is CVE-2026-96422?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Wireshark Foundation

CVE-2026-96422

Frame protocol metadissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Published 2026-09-29.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Wireshark Foundation

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

www.wireshark.org/security/wnpa-sec-2026-102.html
gitlab.com/wireshark/wireshark/-/work_items/21525

Frequently asked questions

What is CVE-2026-96422?: CVE-2026-96422 is a medium-severity vulnerability in Wireshark Foundation, classified under Reachable Assertion. CVSS score: 5.5/10. Published 2026-09-29.
How severe is CVE-2026-96422?: Medium severity. CVSS v3 base score is 5.5 out of 10.