{
  "cveId": "CVE-2026-58058",
  "url": "https://patchblox.com/security/cve/CVE-2026-58058",
  "summary": "CVE-2026-58058 is fixed in 5 products on 1 platform, first by FEDORA-2026-602D919DBC, released July 1, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Nmap - Integer Underflow in IPv6 Extension Header Parsing",
  "description": "Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6_get_data_primitive (libnetutil/netutil.cc), so the pointer advances past the buffer and the remaining-length computation underflows to a large value. A scanned target or on-path attacker returning a crafted IPv6 response with a truncated extension header can trigger out-of-bounds reads and a crash during raw IPv6 scans.",
  "published": "2026-06-28T02:16:33Z",
  "severity": "Moderate",
  "cvss": 6.5,
  "cwe": "Integer Underflow (Wrap or Wraparound)",
  "epss": 0.01454,
  "epssPercentile": 0.73628,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58058",
  "fixes": [
    {
      "platform": "linux",
      "product": "nmap",
      "release": "Debian 14",
      "fixedVersion": "7.99\u002Bdfsg-2",
      "fix": "DEBIAN-CVE-2026-58058",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-58058",
      "released": "2026-07-22T13:15:29Z"
    },
    {
      "platform": "linux",
      "product": "nmap",
      "release": "Fedora 43",
      "fixedVersion": "4:7.92-8.fc43",
      "fix": "FEDORA-2026-602D919DBC",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-602d919dbc",
      "released": "2026-07-01T13:05:47Z"
    },
    {
      "platform": "linux",
      "product": "nmap",
      "release": "sles 15.7",
      "fixedVersion": "7.92-150600.9.3.1",
      "fix": "SUSE-SU-2026:3340-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3340-1",
      "released": "2026-07-28T10:04:18Z"
    },
    {
      "platform": "linux",
      "product": "nmap",
      "release": "sles 16.0",
      "fixedVersion": "7.92-160000.3.1",
      "fix": "SUSE-SU-2026:22814-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22814-1",
      "released": "2026-07-15T12:13:13Z"
    },
    {
      "platform": "linux",
      "product": "nmap-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "4:7.92-8.fc43",
      "fix": "FEDORA-2026-602D919DBC",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-602d919dbc",
      "released": "2026-07-01T13:05:47Z"
    },
    {
      "platform": "linux",
      "product": "nmap-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "4:7.92-8.fc43",
      "fix": "FEDORA-2026-602D919DBC",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-602d919dbc",
      "released": "2026-07-01T13:05:47Z"
    },
    {
      "platform": "linux",
      "product": "nmap-ncat",
      "release": "Fedora 43",
      "fixedVersion": "4:7.92-8.fc43",
      "fix": "FEDORA-2026-602D919DBC",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-602d919dbc",
      "released": "2026-07-01T13:05:47Z"
    },
    {
      "platform": "linux",
      "product": "nmap-ncat-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "4:7.92-8.fc43",
      "fix": "FEDORA-2026-602D919DBC",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-602d919dbc",
      "released": "2026-07-01T13:05:47Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}