Critical RCE vulnerability in Disig Web Signer_CVE-2026-8931

{
    "lastseen": "",
    "description": "A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.",
    "published": "2026-06-01T14:31:15.911Z",
    "modified": "2026-06-01T14:31:15.911Z",
    "type": "cve",
    "title": "Critical RCE vulnerability in Disig Web Signer",
    "source": "SK-CERT",
    "references": "https://www.disig.sk/en/news/important-update-of-the-web-signer-application/\nhttps://www.disig.sk/sk/aktuality/dolezita-aktualizacia-aplikacie-web-signer/\nhttps://download.disigcdn.sk/cdn/products/websigner2/changelog.en.txt\nhttps://download.disigcdn.sk/cdn/products/websigner2/changelog.sk.txt\nhttps://qesportal.sk/Portal/en/Info/News#websigner255\nhttps://qesportal.sk/Portal/sk/Info/News#websigner255",
    "id": "CVE-2026-8931",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Disig Web Signer 2.0.3",
    "sourceHref": "",
    "cvss": {
        "score": 9.4,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
        "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": "Web Signer",
    "version": "2.0.3",
    "vendor": "Disig",
    "ai_description": "Remote Code Execution (RCE) vulnerability in Disig Web Signer",
    "ai_severity": "Critical",
    "ai_vendor": "Disig",
    "ai_product": "Web Signer",
    "ai_version": "2.0.3-2.5.3",
    "ai_score": 9.4
}