CVE-2026-5409: Uncontrolled Recursion in Wireshark
Published Apr 30, 2026
·Updated
Monero protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Affected Software
3 affected components
Wireshark Wireshark>=4.6.0<=4.6.4, >=4.4.0<=4.4.14
Wireshark Wireshark>=4.4.0<=4.4.14
Wireshark Wireshark>=4.6.0<=4.6.4
Remediation
Information
Upgrade to version 4.6.5 or above
Event History
Apr 30, 2026
CVE Published
via MITRE·05:41 AM
Data Sourced
via MITRE·05:41 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·07:16 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-5409?
CVE-2026-5409 is classified as a denial of service vulnerability due to uncontrolled recursion in the Wireshark Monero protocol dissector.
2
How do I fix CVE-2026-5409?
To mitigate CVE-2026-5409, users should upgrade Wireshark to a version beyond 4.6.4 or 4.4.14.
3
Which versions of Wireshark are affected by CVE-2026-5409?
CVE-2026-5409 affects Wireshark versions from 4.6.0 to 4.6.4 and from 4.4.0 to 4.4.14.
4
What impact does CVE-2026-5409 have on system performance?
CVE-2026-5409 can lead to a denial of service by causing the application to crash due to excessive recursion.
5
Is there a workaround for CVE-2026-5409?
Currently, the recommended action for CVE-2026-5409 is to upgrade to a patched version of Wireshark, as there are no known workarounds.