{
  "crds_version": "0.1",
  "kind": "base",
  "id": "crds:cve-2026-20122",
  "revision": 1,
  "title": "Cisco Catalyst SD-WAN Manager — read-only account overwrites files",
  "summary": "A read-only account with programming-interface access (API) on Cisco's Catalyst software-defined wide-area network manager (SD-WAN Manager) can upload a file that overwrites any other on the host, lifting the attacker to the manager's own service account.",
  "source_type": "cve",
  "severity": "high",
  "cvss": {
    "score": 5.4,
    "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
    "version": "3.1"
  },
  "epss": 0.24585,
  "exploitation": {
    "known_exploited": true,
    "exploit_available": false,
    "attack_complexity": "low",
    "kev_added": "2026-04-20",
    "prerequisites": "Valid read-only credentials with programming-interface access on the manager."
  },
  "kill_chain": "privilege_escalation",
  "recommended_action": "Apply Cisco advisory cisco-sa-sdwan-authbp-qwCX8D4v now; audit read-only accounts that carry interface access and look for files written outside the upload paths.",
  "confidence": "high",
  "provenance": [
    {
      "fields": [
        "cvss",
        "exploitation.attack_complexity",
        "exploitation.exploit_available",
        "references",
        "published_at"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2026-20122",
      "retrieved_at": "2026-09-24T08:51:39.744Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "exploitation.known_exploited",
        "exploitation.kev_added"
      ],
      "source": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "retrieved_at": "2026-09-24T08:51:39.744Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "epss"
      ],
      "source": "https://api.first.org/data/v1/epss?cve=CVE-2026-20122",
      "retrieved_at": "2026-09-24T08:51:39.744Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "title",
        "summary",
        "severity",
        "remediation",
        "mitre_attack",
        "kill_chain",
        "recommended_action",
        "confidence",
        "tags",
        "exploitation.prerequisites"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2026-20122",
      "retrieved_at": "2026-09-24T08:51:39.744Z",
      "confidence": "high",
      "extractor": "claude-code"
    }
  ],
  "references": [
    {
      "type": "cve",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20122",
      "label": "NVD record"
    },
    {
      "type": "cisa",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "label": "CISA Known Exploited Vulnerabilities catalog"
    },
    {
      "type": "vendor_advisory",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v"
    }
  ],
  "published_at": "2026-02-25T17:25:28.170Z",
  "issued_at": "2026-09-24T08:51:39.744Z",
  "tags": [
    "cisco",
    "sd-wan",
    "file-overwrite",
    "privilege-escalation",
    "kev"
  ]
}