CVE-2026-6529 - Vulnerability Details - OpenCVE

iLBC audio 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 none

Automatable no

Technical Impact partial

Vendors	Products
Wireshark	Wireshark

Configuration 1 [-]

OR	cpe:2.3:a:wireshark:wireshark::::::::
	cpe:2.3:a:wireshark:wireshark::::::::

No data.

References

Link	Providers
https://gitlab.com/wireshark/wireshark/-/work_items/21145
https://www.wireshark.org/security/wnpa-sec-2026-32.html

History

Fri, 01 May 2026 19:30:00 +0000

Type	Values Removed	Values Added
CPEs		cpe:2.3:a:wireshark:wireshark::::::::

Thu, 30 Apr 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 30 Apr 2026 08:00:00 +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 audio codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Title		Heap-based Buffer Overflow in Wireshark
Weaknesses		CWE-122
References		https://gitlab.com/wireshark/wireshark/-/work_items/21145 https://www.wireshark.org/security/wnpa-sec-2026-32.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: 2026-04-30T05:36:14.210Z

Updated: 2026-04-30T15:19:22.354Z

Reserved: 2026-04-17T15:05:57.690Z

Link: CVE-2026-6529

Vulnrichment

Updated: 2026-04-30T14:57:23.426Z

NVD

Status : Analyzed

Published: 2026-04-30T07:16:40.130

Modified: 2026-05-01T19:28:30.840

Link: CVE-2026-6529

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6529", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "state": "PUBLISHED", "assignerShortName": "GitLab", "dateReserved": "2026-04-17T15:05:57.690Z", "datePublished": "2026-04-30T05:36:14.210Z", "dateUpdated": "2026-04-30T15:19:22.354Z"}, "containers": {"cna": {"title": "Heap-based Buffer Overflow in Wireshark", "descriptions": [{"lang": "en", "value": "iLBC audio codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service"}], "affected": [{"vendor": "Wireshark Foundation", "product": "Wireshark", "versions": [{"version": "4.6.0", "status": "affected", "lessThan": "4.6.5", "versionType": "semver"}, {"version": "4.4.0", "status": "affected", "lessThan": "4.4.15", "versionType": "semver"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-122: Heap-based Buffer Overflow", "cweId": "CWE-122", "type": "CWE"}]}], "references": [{"url": "https://www.wireshark.org/security/wnpa-sec-2026-32.html"}, {"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21145"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM"}}], "solutions": [{"lang": "en", "value": "Upgrade to version 4.6.5 or above"}], "credits": [{"lang": "en", "value": "Alexandre de Oliveira", "type": "finder"}], "providerMetadata": {"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-04-30T05:36:14.210Z"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-30T14:57:17.937339Z", "id": "CVE-2026-6529", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-30T15:19:22.354Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-6529", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-30T14:57:17.937339Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-30T14:57:23.426Z"}}], "cna": {"title": "Heap-based Buffer Overflow in Wireshark", "credits": [{"lang": "en", "type": "finder", "value": "Alexandre de Oliveira"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Wireshark Foundation", "product": "Wireshark", "versions": [{"status": "affected", "version": "4.6.0", "lessThan": "4.6.5", "versionType": "semver"}, {"status": "affected", "version": "4.4.0", "lessThan": "4.4.15", "versionType": "semver"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Upgrade to version 4.6.5 or above"}], "references": [{"url": "https://www.wireshark.org/security/wnpa-sec-2026-32.html"}, {"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21145"}], "descriptions": [{"lang": "en", "value": "iLBC audio codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service"}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-122", "description": "CWE-122: Heap-based Buffer Overflow"}]}], "providerMetadata": {"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-04-30T05:36:14.210Z"}}}, "cveMetadata": {"cveId": "CVE-2026-6529", "state": "PUBLISHED", "dateUpdated": "2026-04-30T15:19:22.354Z", "dateReserved": "2026-04-17T15:05:57.690Z", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "datePublished": "2026-04-30T05:36:14.210Z", "assignerShortName": "GitLab"}, "dataVersion": "5.2"}