CVE-2026-5657 - Vulnerability Details - OpenCVE

iLBC codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

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.

Exploitation poc

Automatable no

Technical Impact partial

Vendors	Products
Wireshark	Wireshark

No data.

No data.

References

Link	Providers
https://gitlab.com/wireshark/wireshark/-/issues/21113
https://gitlab.com/wireshark/wireshark/-/work_items/21113
https://www.wireshark.org/security/wnpa-sec-2026-20.html

History

Thu, 30 Apr 2026 13:15:00 +0000

Type	Values Removed	Values Added
References		https://gitlab.com/wireshark/wireshark/-/work_items/21113
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 30 Apr 2026 07:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Wireshark Wireshark wireshark
Vendors & Products		Wireshark Wireshark wireshark

Thu, 30 Apr 2026 06:30:00 +0000

Type	Values Removed	Values Added
Description		iLBC codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Title		Double Free in Wireshark
Weaknesses		CWE-415
References		https://gitlab.com/wireshark/wireshark/-/issues/21113 https://www.wireshark.org/security/wnpa-sec-2026-20.html
Metrics		cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}`

MITRE

Status: PUBLISHED

Assigner: GitLab

Published: 2026-04-30T05:38:54.201Z

Updated: 2026-04-30T12:45:26.656Z

Reserved: 2026-04-06T06:34:11.359Z

Link: CVE-2026-5657

Vulnrichment

Updated: 2026-04-30T12:45:20.166Z

NVD

Status : Undergoing Analysis

Published: 2026-04-30T07:16:38.907

Modified: 2026-04-30T15:10:10.430

Link: CVE-2026-5657

Redhat

No data.

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