FKIE_CVE-2025-25567

Vulnerability from fkie_nvd - Published: 2025-03-12 16:15 - Updated: 2025-07-19 02:15
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in Internat.c via the UniToStrForSingleChars function. NOTE: the Supplier disputes this because the behavior only enables a local user to attack himself through the UI,
References
cve@mitre.orghttps://filecenter.softether-upload.com/d/250715_001_79538/CVE-2025-25567.pdf
cve@mitre.orghttps://lzydry.github.io/CVE-2025-25567/Exploit
134c704f-9b21-4f2e-91b3-4a467353bcc0https://lzydry.github.io/CVE-2025-25567/Exploit
Impacted products
Vendor Product Version
softether vpn 5.02.5187
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:softether:vpn:5.02.5187:*:*:*:*:*:*:*",
              "matchCriteriaId": "47768969-B8C7-4834-BF99-2433BE4D1E6A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [
    {
      "sourceIdentifier": "cve@mitre.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in Internat.c via the UniToStrForSingleChars function. NOTE: the Supplier disputes this because the behavior only enables a local user to attack himself through the UI,"
    },
    {
      "lang": "es",
      "value": "SoftEther VPN 5.02.5187 es vulnerable al desbordamiento del b\u00fafer en Internat.c a trav\u00e9s de la funci\u00f3n UniToStrForSingleChars."
    }
  ],
  "id": "CVE-2025-25567",
  "lastModified": "2025-07-19T02:15:22.210",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-03-12T16:15:22.840",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://filecenter.softether-upload.com/d/250715_001_79538/CVE-2025-25567.pdf"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ],
      "url": "https://lzydry.github.io/CVE-2025-25567/"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit"
      ],
      "url": "https://lzydry.github.io/CVE-2025-25567/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.