{
    "id": "CVE-2021-35211",
    "published": "2021-07-14 21:15:08",
    "last_modified": "2026-06-17 03:57:18",
    "cvss_score": "9.0",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
    "cwe": "CWE-787",
    "description": "Microsoft discovered a remote code execution (RCE) vulnerability in the SolarWinds Serv-U product utilizing a Remote Memory Escape Vulnerability. If exploited, a threat actor may be able to gain privileged access to the machine hosting Serv-U Only. SolarWinds Serv-U Managed File Transfer and Serv-U Secure FTP for Windows before 15.2.3 HF2 are affected by this vulnerability.",
    "epss_score": "0.91160",
    "epss_percentile": "0.99806",
    "kev": 1,
    "kev_due": "2021-11-17",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:27:48",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2021-11-17."
    },
    "products": [
        {
            "vendor": "solarwinds",
            "product": "serv-u"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2021-35211",
        "date_added": "2021-11-03",
        "due_date": "2021-11-17",
        "vendor": "SolarWinds",
        "product": "Serv-U",
        "name": "SolarWinds Serv-U Remote Code Execution Vulnerability",
        "ransomware": 1
    },
    "exploits": [],
    "refs_list": [
        "https://www.microsoft.com/security/blog/2021/07/13/microsoft-discovers-threat-actor-targeting-solarwinds-serv-u-software-with-0-day-exploit",
        "https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35211",
        "https://www.microsoft.com/security/blog/2021/07/13/microsoft-discovers-threat-actor-targeting-solarwinds-serv-u-software-with-0-day-exploit",
        "https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35211",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-35211"
    ]
}