pcapng file parser crash in Wireshark 4.6.0 to 4.6.6 allows denial of service

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Wireshark Foundation Wireshark unaffected
Version Status Constraints
4.6.0 affected < 4.6.7

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Upgrade to version 4.6.7 or above

Workaround

No workaround given by the vendor.

References
Link Providers
https://gitlab.com/wireshark/wireshark/-/work_items/21285 cve-icon
https://www.wireshark.org/security/wnpa-sec-2026-53.html cve-icon
History

Wed, 08 Jul 2026 21:15:00 +0000

Type Values Removed Values Added
Description pcapng file parser crash in Wireshark 4.6.0 to 4.6.6 allows denial of service
Title Heap-based Buffer Overflow in Wireshark
Weaknesses CWE-122
References
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitLab

Published:

Updated: 2026-07-08T20:51:15.275Z

Reserved: 2026-07-08T20:46:03.869Z

Link: CVE-2026-15173

cve-icon Vulnrichment

No data.

cve-icon NVD

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cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses