CVE-2026-5299

ICMPv6 PvD protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-25)

CWE

CWE-674

Published

2026-04-30

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• wireshark:wireshark

References

• https://gitlab.com/wireshark/wireshark/-/issues/21077
• https://www.wireshark.org/security/wnpa-sec-2026-12.html

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