Vulnerability in Wireshark Foundation

CVE-2026-76919

ESS protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Wireshark Foundation

Weakness classification (CWE)

CWE-457

References

Frequently asked questions

What is CVE-2026-76919?: CVE-2026-76919 is a medium-severity vulnerability in Wireshark Foundation, classified under CWE-457. CVSS score: 5.3/10. Published 2026-08-19.
How severe is CVE-2026-76919?: Medium severity. CVSS v3 base score is 5.3 out of 10.