Buffer Over-read in Wireshark

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Summary

CVECVE-2026-6532
StatePUBLISHED
AssignerGitLab
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-30 07:16:40 UTC
Updated2026-04-30 07:16:40 UTC
DescriptionKismet protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

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

Problem Types: CWE-126 | CWE-126 CWE-126: Buffer Over-read

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Wireshark Foundation Wireshark affected 4.6.0 4.6.5 semver Not specified
CNA Wireshark Foundation Wireshark affected 4.4.0 4.4.15 semver Not specified

References

ReferenceSourceLinkTags
www.wireshark.org/security/wnpa-sec-2026-29.html [email protected] www.wireshark.org
gitlab.com/wireshark/wireshark/-/issues/21129 [email protected] gitlab.com
gitlab.com/wireshark/wireshark/-/issues/21128 [email protected] gitlab.com
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: Sharon Brizinov (en)

Additional Advisory Data

Solutions

CNA: Upgrade to version 4.6.5 or above

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