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              "content": {
                "id": "CVE-2026-5720",
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                  {
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                "timestamp": "2026-04-20T14:51:38.349879Z",
                "version": "2.0.3"
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        "title": "CISA ADP Vulnrichment"
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          "product": "miniupnpd",
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          "type": "finder",
          "value": "Kazuma Matsumoto, a security researcher at GMO Cybersecurity by IERAE, Inc."
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              "value": "\u003cp\u003eminiupnpd contains an integer underflow vulnerability in SOAPAction header parsing that allows remote attackers to cause a denial of service or information disclosure by sending a malformed SOAPAction header with a single quote. Attackers can trigger an out-of-bounds memory read by exploiting improper length validation in ParseHttpHeaders(), where the parsed length underflows to a large unsigned value when passed to memchr(), causing the process to scan memory far beyond the allocated HTTP request buffer.\u003c/p\u003e"
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            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
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              "cweId": "CWE-191",
              "description": "CWE-191: Integer Underflow (Wrap or Wraparound)",
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            },
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
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      "providerMetadata": {
        "dateUpdated": "2026-05-04T21:40:40.859Z",
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          "tags": [
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          "url": "https://github.com/miniupnp/miniupnp/"
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          "url": "https://github.com/miniupnp/miniupnp/commit/f56bd09b2f2650126b832c5f30a65a09e28167fa"
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          "url": "https://www.vulncheck.com/advisories/miniupnpd-integer-underflow-soapaction-header-parsing"
        }
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      "source": {
        "discovery": "EXTERNAL"
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      "title": "miniupnpd Integer Underflow SOAPAction Header Parsing",
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    "cveId": "CVE-2026-5720",
    "datePublished": "2026-04-17T21:39:54.818Z",
    "dateReserved": "2026-04-06T20:18:57.634Z",
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