CVE-2026-5405

RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 5% of CVEs (scores of 2026-10-25)

CWEs

CWE-122, CWE-787

Published

2026-05-01

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• wireshark:wireshark

References

• https://gitlab.com/wireshark/wireshark/-/issues/21105
• https://www.wireshark.org/security/wnpa-sec-2026-17.html
• https://access.redhat.com/errata/RHSA-2026:20600
• https://access.redhat.com/errata/RHSA-2026:26182
• https://access.redhat.com/security/cve/CVE-2026-5405

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