{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.8.4"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9c370866afaf5ccb258bf03848b2d22f30cf61bd"
            },
            {
              "fixed": "1ff74ee3ab5ff280e8ba976aa8c744dca57eb35b"
            }
          ],
          "repo": "https://github.com/irontec/sngrep",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-121"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90558.json"
  },
  "details": "sngrep through 1.8.4 contains stack buffer overflow vulnerabilities in SIP attribute formatting routines when header values exceed the 255-byte buffer limit. Attackers can craft malicious SIP packets with oversized Call-ID, X-Call-ID, or other header fields to overflow stack buffers and cause crashes or execute arbitrary code during packet parsing and rendering.",
  "id": "CVE-2026-90558",
  "modified": "2026-09-16T03:31:01.546712790Z",
  "published": "2026-09-12T18:06:42.389Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90558.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90558"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/sngrep-through-1.8.4-stack-buffer-overflow-via-sip-headers"
    },
    {
      "type": "FIX",
      "url": "https://github.com/irontec/sngrep/commit/1ff74ee3ab5ff280e8ba976aa8c744dca57eb35b"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/irontec/sngrep"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/irontec/sngrep/blob/v1.8.4/src/sip_call.c#L260"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/irontec/sngrep/blob/v1.8.4/src/sip_msg.c#L150"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "sngrep through 1.8.4 Stack Buffer Overflow via SIP Headers"
}