{
  "id": "CVE-2025-21042",
  "url": "https://spydr.io/cve/CVE-2025-21042",
  "published": "2025-09-12T08:15:44.743Z",
  "modified": "2026-09-30T23:10:00.237Z",
  "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": 0.3317,
  "epss_percentile": 0.98324,
  "exploited": true,
  "kev": {
    "added": "2025-11-10",
    "due": "2025-12-01",
    "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": "Samsung Mobile Devices Out-of-Bounds Write Vulnerability",
    "notes": "https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21042"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "Samsung Mobile"
  ],
  "products": [
    "Samsung Mobile Devices"
  ],
  "cwes": [
    "CWE-787"
  ],
  "description": "Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute arbitrary code.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://unit42.paloaltonetworks.com/landfall-is-new-commercial-grade-android-spyware/",
      "tags": [
        "Technical Description",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21042",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21042",
  "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."
    }
  ]
}