CVE-2026-6528
Full vulnerability record from the local CVENow database.
Description
TLS protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 allows denial of service
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-30 07:16:40.013000
Last modified
2026-10-26 00:10:00.150000
View original CVE JSON
{
"id": "CVE-2026-6528",
"sourceIdentifier": "[email protected]",
"published": "2026-04-30T07:16:40.013",
"lastModified": "2026-10-26T00:10:00.150",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "TLS protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 allows denial of service"
},
{
"lang": "es",
"value": "Bucle infinito del disector del protocolo TLS en Wireshark 4.6.0 a 4.6.4 permite denegación de servicio"
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Wireshark Foundation",
"product": "Wireshark",
"defaultStatus": "unaffected",
"versions": [
{
"version": "4.6.0",
"lessThan": "4.6.5",
"versionType": "semver",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-04-30T15:00:22.168111Z",
"id": "CVE-2026-6528",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-835"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.6.0",
"versionEndIncluding": "4.6.4",
"matchCriteriaId": "B52139AE-161F-406A-B28D-F874CE8B68B6"
}
]
}
]
}
],
"references": [
{
"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21147",
"source": "[email protected]",
"tags": [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
]
},
{
"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21151",
"source": "[email protected]",
"tags": [
"Exploit",
"Issue Tracking"
]
},
{
"url": "https://www.wireshark.org/security/wnpa-sec-2026-33.html",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
}
]
}