{
  "id": "CVE-2026-24061",
  "url": "https://spydr.io/cve/CVE-2026-24061",
  "published": "2026-01-21T07:16:01.597Z",
  "modified": "2026-09-30T11:47:02.427Z",
  "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": "mitre.org",
  "epss": 0.98984,
  "epss_percentile": 0.9993,
  "exploited": true,
  "kev": {
    "added": "2026-01-26",
    "due": "2026-02-16",
    "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": "GNU InetUtils Argument Injection Vulnerability",
    "notes": "This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://cgit.git.savannah.gnu.org/cgit/inetutils.git ; https://codeberg.org/inetutils/inetutils/commit/ccba9f748aa8d50a38d7748e2e60362edd6a32cc; https://codeberg.org/inetutils/inetutils/commit/fd702c02497b2f398e739e3119bed0b23dd7aa7b ; https://nvd.nist.gov/vuln/detail/CVE-2026-24061"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "GNU"
  ],
  "products": [
    "GNU Inetutils"
  ],
  "cwes": [
    "CWE-88"
  ],
  "description": "telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a \"-f root\" value for the USER environment variable.",
  "status": "Analyzed",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://codeberg.org/inetutils/inetutils/commit/ccba9f748aa8d50a38d7748e2e60362edd6a32cc",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://codeberg.org/inetutils/inetutils/commit/fd702c02497b2f398e739e3119bed0b23dd7aa7b",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://lists.gnu.org/archive/html/bug-inetutils/2026-01/msg00004.html",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://redteam.ae/blog/cve-2026-24061-inetutils-telnetd-root-bypass",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.gnu.org/software/inetutils/",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://www.openwall.com/lists/oss-security/2026/01/20/2",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "https://www.openwall.com/lists/oss-security/2026/01/20/8",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "https://www.vicarius.io/vsociety/posts/cve-2026-24061-detection-script-remote-authentication-bypass-in-gnu-inetutils-package",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.vicarius.io/vsociety/posts/cve-2026-24061-mitigation-script-remote-authentication-bypass-in-gnu-inetutils-package",
      "tags": [
        "Mitigation",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/01/22/1",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2026/01/msg00025.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-24061",
      "tags": [
        "US Government Resource"
      ]
    },
    {
      "url": "https://www.labs.greynoise.io/grimoire/2026-01-22-f-around-and-find-out-18-hours-of-unsolicited-houseguests/index.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.openwall.com/lists/oss-security/2026/01/20/2#:~:text=root@...a%3A~%20USER='",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24061",
  "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."
    }
  ]
}