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CVE-2025-46404

Full vulnerability record from the local CVENow database.

Description

A denial of service vulnerability exists in the lasso_provider_verify_saml_signature functionality of Entr'ouvert Lasso 2.5.1. A specially crafted SAML response can lead to a denial of service. An attacker can send a malformed SAML response to trigger this vulnerability.

Severity
HIGH
CVSS score
7.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2025-11-05 15:15:37.843000
Last modified
2026-10-18 21:10:00.120000
View original CVE JSON
{
  "id": "CVE-2025-46404",
  "sourceIdentifier": "[email protected]",
  "published": "2025-11-05T15:15:37.843",
  "lastModified": "2026-10-18T21:10:00.120",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A denial of service vulnerability exists in the lasso_provider_verify_saml_signature functionality of Entr'ouvert Lasso 2.5.1. A specially crafted SAML response can lead to a denial of service. An attacker can send a malformed SAML response to trigger this vulnerability."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de denegación de servicio existe en la funcionalidad lasso_provider_verify_saml_signature de Entr'ouvert Lasso 2.5.1. Una respuesta SAML especialmente diseñada puede conducir a una denegación de servicio. Un atacante puede enviar una respuesta SAML malformada para activar esta vulnerabilidad."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Entr'ouvert",
          "product": "Lasso",
          "versions": [
            {
              "version": "2.5.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-11-05T19:01:39.210614Z",
          "id": "CVE-2025-46404",
          "options": [
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              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:entrouvert:lasso:2.5.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "7177DC8A-9874-45BA-BC80-17604D8A0875"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2194",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2194",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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}