PaperCut MF: Card truncation on HP readers_CVE-2026-6180

{
    "lastseen": "",
    "description": "A race condition exists in PaperCut MF when processing badge-swipe data from certain HP multifunction devices. Under specific network conditions involving dropped packets and out-of-order sequence counters, the server may incorrectly process fragmented data chunks. If a sequence reset notification fails to reach the server, the server may reject the initial data chunk while erroneously accepting subsequent chunks before a connection reset completes.\n\n\n\nThis leads to the registration of a truncated badge ID string. While this typically results in an authentication failure, the vulnerability is compounded in environments utilizing custom badge-ID post-processing scripts. In such configurations, the truncated string may be transformed into a valid ID belonging to a different user, leading to unauthorized session establishment (Incorrect User Login) on the device.",
    "published": "2026-05-05T06:19:44.725Z",
    "modified": "2026-05-05T06:19:44.725Z",
    "type": "cve",
    "title": "PaperCut MF: Card truncation on HP readers",
    "source": "PaperCut",
    "references": "https://www.papercut.com/kb/Main/papercut-ng-mf-and-papercut-hive-security-bulletin-may-2026/",
    "id": "CVE-2026-6180",
    "bulletinFamily": "",
    "cwe": [
        "CWE-367",
        "CWE-20"
    ],
    "cvelist": null,
    "sourceData": "PaperCut PaperCut NG/MF 0\nPaperCut PaperCut NG/MF 0",
    "sourceHref": "",
    "cvss": {
        "score": 4.1,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:P/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:N",
        "version": "4.0"
    },
    "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": "PaperCut NG/MF",
    "version": "0",
    "vendor": "PaperCut",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}