CVE-2026-12755

{
  "id": "CVE-2026-12755",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-25T14:16:36.333",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper input validation in the PAM AD discovery endpoints in \nDevolutions Server 2026.2.4.0 through 2026.2.7.0 allows an authenticated\n user with the UserGroupsView permission to coerce server-side \nauthentication to an attacker-controlled host, exposing PAM provider \ncredentials as a NTLMv2 challenge-response, via a crafted DomainName \nparameter."
    },
    {
      "lang": "es",
      "value": "Validación de entrada inadecuada en los puntos finales de descubrimiento de PAM AD en Devolutions Server 2026.2.4.0 hasta 2026.2.7.0 permite a un usuario autenticado con el permiso UserGroupsView forzar la autenticación del lado del servidor a un host controlado por el atacante, exponiendo las credenciales del proveedor PAM como una respuesta de desafío NTLMv2, a través de un parámetro DomainName manipulado."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Devolutions",
          "product": "Server",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "2026.2.4.0",
              "lessThan": "2026.2.7.0",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 2.7,
          "baseSeverity": "LOW",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-25T14:52:17.880696Z",
          "id": "CVE-2026-12755",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1284"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:devolutions:devolutions_server:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2026.2.4.0",
              "versionEndExcluding": "2026.2.9.0",
              "matchCriteriaId": "035F9F71-2FA4-430F-8B3F-6B45B92FCF51"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://devolutions.net/security/advisories/DEVO-2026-0020/",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}