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CVE-2025-53859 NGINX ngx_mail_smtp_module vulnerability

🗓️ 13 Aug 2025 14:46:55Reported by f5Type 
cvelist
 cvelist
🔗 www.cve.org👁 12 Views

NGINX SMTP module memory over-read; unauthenticated leak of request bytes; requires module none and Auth-Wait.

Related
Affected
Refs
[
  {
    "defaultStatus": "unknown",
    "modules": [
      "ngx_mail_smtp_module"
    ],
    "product": "NGINX Plus",
    "vendor": "F5",
    "versions": [
      {
        "status": "unaffected",
        "version": "R35",
        "versionType": "custom"
      },
      {
        "lessThan": "R34 P2",
        "status": "affected",
        "version": "R34",
        "versionType": "custom"
      },
      {
        "lessThan": "R33 P3",
        "status": "affected",
        "version": "R33",
        "versionType": "custom"
      },
      {
        "lessThan": "R32 P3",
        "status": "affected",
        "version": "R32",
        "versionType": "custom"
      },
      {
        "lessThan": "*",
        "status": "affected",
        "version": "R31",
        "versionType": "custom"
      },
      {
        "lessThan": "*",
        "status": "affected",
        "version": "R30",
        "versionType": "custom"
      }
    ]
  },
  {
    "defaultStatus": "unknown",
    "modules": [
      "ngx_mail_smtp_module"
    ],
    "product": "NGINX Open Source",
    "vendor": "F5",
    "versions": [
      {
        "lessThan": "1.29.1",
        "status": "affected",
        "version": "0.7",
        "versionType": "custom"
      }
    ]
  }
]

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13 Aug 2025 14:46Current
CVSS 3.13.7
CVSS 46.3
EPSS0.00056
12