CVE-2026-76886

C12.22 protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gitlab.com/wireshark/wireshark/-/work_items/21439	Exploit Mitigation Vendor Advisory
https://www.wireshark.org/security/wnpa-sec-2026-75.html	Vendor Advisory
https://gitlab.com/wireshark/wireshark/-/work_items/21446	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

23 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) Fallo del disector del protocolo C12.22 en las versiones 4.6.0 a 4.6.7 y 4.4.0 a 4.4.18 permite la denegación de servicio

Information

Published : 2026-08-19 23:16

Updated : 2026-10-24 13:10

NVD link : CVE-2026-76886

Mitre link : CVE-2026-76886

CVE.ORG link : CVE-2026-76886

JSON object : View

Products Affected

wireshark

wireshark

CWE

CWE-122

Heap-based Buffer Overflow

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