CVE-2026-6520

OpenFlow v6 protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gitlab.com/wireshark/wireshark/-/work_items/21181	Exploit Issue Tracking Third Party Advisory
https://www.wireshark.org/security/wnpa-sec-2026-40.html	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:wireshark:wireshark::::::::
	cpe:2.3:a:wireshark:wireshark::::::::

History

No history.

Information

Published : 2026-04-30 07:16

Updated : 2026-06-17 11:00

NVD link : CVE-2026-6520

Mitre link : CVE-2026-6520

CVE.ORG link : CVE-2026-6520

JSON object : View

Products Affected

wireshark

wireshark

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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