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CVE-2026-5406

Uncontrolled Recursion in Wireshark

Published: Apr 30, 2026Updated: May 1, 2026 Sources: CVE List NVD BDUCWE-674
5.5MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 92.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

FC-SWILS protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-674

Affected Products

Wireshark team
oss-projectaka wireshark network protocol analyzer, wireshark
WiresharkOn-premDesktop App
Security Products
Wireshark Foundation
oss-projectaka wireshark, editcap
WiresharkOn-premDesktop App
Security Products
wireshark
oss-project·US
wiresharkOn-premDesktop App
Networking Infrastructure / network-management

Exploitability

Official Patch Available
Is your org exposed to CVE-2026-5406?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://gitlab.com/wireshark/wireshark/-/issues/21070
gitlab.com
https://gitlab.com/wireshark/wireshark/-/work_items/21070
gitlab.com
https://www.wireshark.org/security/wnpa-sec-2026-10.html
wireshark.org
and 1 more references View all →

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