{
  "id": "CVE-2021-32030",
  "url": "https://spydr.io/cve/CVE-2021-32030",
  "published": "2021-05-06T15:15:07.973Z",
  "modified": "2026-06-17T03:52:42.307Z",
  "score": 9.8,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.99393,
  "epss_percentile": 0.99941,
  "exploited": true,
  "kev": {
    "added": "2025-06-02",
    "due": "2025-06-23",
    "action": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
    "ransomware": "Unknown",
    "name": "ASUS Routers Improper Authentication Vulnerability",
    "notes": "https://www.asus.com/us/supportonly/lyra%20mini/helpdesk_bios/ ; https://www.asus.com/us/supportonly/rog%20rapture%20gt-ac2900/helpdesk_bios/; https://nvd.nist.gov/vuln/detail/CVE-2021-32030"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "asus"
  ],
  "products": [
    "asus lyra mini firmware",
    "asus gt-ac2900 firmware"
  ],
  "cwes": [
    "CWE-287"
  ],
  "description": "The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 and Lyra Mini before 3.0.0.4_384_46630 allows authentication bypass when processing remote input from an unauthenticated user, leading to unauthorized access to the administrator interface. This relates to handle_request in router/httpd/httpd.c and auth_check in web_hook.o. An attacker-supplied value of '\\0' matches the device's default value of '\\0' in some situations. Note: All versions of Lyra Mini and earlier which are unsupported (End-of-Life, EOL) are also affected by this vulnerability, Consumers can mitigate this vulnerability by disabling the remote access features from WAN.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md",
      "tags": [
        "Broken Link",
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS/",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://www.asus.com/us/supportonly/lyra%20mini/helpdesk_bios/",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://www.atredis.com/blog/2021/4/30/asus-authentication-bypass",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-32030",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-32030",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}