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CVE-2026-9759

NULL Pointer Dereference in Wireshark

Published: May 27, 2026Updated: May 27, 2026 Sources: CVE List
NVD MITRE
5.5CVSS
MEDIUM

ROHC protocol dissector crash in Wireshark 4.6.0 to 4.6.5 and 4.4.0 to 4.4.15 allows denial of service

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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

Weaknesses

CWE-476CWE-476: NULL Pointer Dereference

Affected Products

Wireshark
Wireshark Foundation

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://www.wireshark.org/security/wnpa-sec-2026-51.html
wireshark.org
https://gitlab.com/wireshark/wireshark/-/work_items/21243
gitlab.com

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