Improperly Controlled Sequential Memory Allocation in Wireshark_CVE-2026-6869

5.5 / 10

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Description

WebSocket protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

Basic Information

ID CVE-2026-6869

Source GitLab

Published Apr 30, 2026 at 05:33

Affected Product

Vendor Wireshark Foundation

Product Wireshark

Version 4.6.0

Affected Versions Wireshark Foundation Wireshark 4.6.0
Wireshark Foundation Wireshark 4.4.0

CWE Classification

CWE-1325

References

{
    "lastseen": "",
    "description": "WebSocket protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service",
    "published": "2026-04-30T05:33:39.211Z",
    "modified": "2026-04-30T05:33:39.211Z",
    "type": "cve",
    "title": "Improperly Controlled Sequential Memory Allocation in Wireshark",
    "source": "GitLab",
    "references": "https://www.wireshark.org/security/wnpa-sec-2026-44.html\nhttps://gitlab.com/wireshark/wireshark/-/work_items/21190",
    "id": "CVE-2026-6869",
    "bulletinFamily": "",
    "cwe": [
        "CWE-1325"
    ],
    "cvelist": null,
    "sourceData": "Wireshark Foundation Wireshark 4.6.0\nWireshark Foundation Wireshark 4.4.0",
    "sourceHref": "",
    "cvss": {
        "score": 5.5,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Wireshark",
    "version": "4.6.0",
    "vendor": "Wireshark Foundation",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}