Security advisory

{
  "id": "cdb273953ef1b34f2439f69ab544a432c137bf5ac53c7b508a6ac151d0966646",
  "url": "https://osv.dev/vulnerability/CVE-2025-0696",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2025-0696",
    "summary": "A NULL Pointer Dereference vulnerability in Cesanta Frozen versions less than 1.7 allows an attacker to induce a crash of the component embedding the library by supplying a maliciously crafted JSON as input.",
    "evidence": "osv:CVE-2025-0696",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-0696",
      "aliases": [
        "CVE-2025-0696"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/cesanta/frozen",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2cfa60eff92724e165f45e902572461ccc207cdf"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.7"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.6",
            "1.5",
            "1.4",
            "1.3",
            "1.2",
            "1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-0696.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:40.178158512Z",
      "provider": "osv",
      "references": [
        "https://github.com/cesanta/frozen/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/0xxx/CVE-2025-0696.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-0696",
        "https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-0696"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-476"
        ],
        "cna_assigner": "Nozomi",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/0xxx/CVE-2025-0696.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-0696",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 507527,
  "published_at": "2025-01-27T11:12:00.703+00:00"
}