NULL Pointer Dereference in Wireshark

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Summary

CVECVE-2026-6525
StatePUBLISHED
AssignerGitLab
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-02 12:16:16 UTC
Updated2026-05-05 15:42:55 UTC
DescriptionIEEE 802.11 protocol dissector crash in Wireshark 4.6.0 to 4.6.4

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.000130000 probability, percentile 0.021260000 (date 2026-05-05)

Problem Types: CWE-476 | CWE-476 CWE-476: NULL Pointer Dereference

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
3.1CNACVSS5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Wireshark Wireshark All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Wireshark Foundation Wireshark affected 4.6.0 4.6.5 semver Not specified

References

ReferenceSourceLinkTags
www.wireshark.org/security/wnpa-sec-2026-36.html [email protected] www.wireshark.org Vendor Advisory
gitlab.com/wireshark/wireshark/-/work_items/21008 134c704f-9b21-4f2e-91b3-4a467353bcc0 gitlab.com Exploit, Issue Tracking, Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Nils Bagge (en)

Additional Advisory Data

Solutions

CNA: Upgrade to version 4.6.5 or above

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