CVE-2025-46784

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

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2025-2195	Exploit Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2195	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:entrouvert:lasso:2.5.1:*:*:*:*:*:*:*

History

18 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad de denegación de servicio existe en la funcionalidad lasso_node_init_from_message_with_format de Entr'ouvert Lasso 2.5.1. Una respuesta SAML especialmente diseñada puede provocar un agotamiento de memoria, lo que resulta en una denegación de servicio. Un atacante puede enviar una respuesta SAML malformada para activar esta vulnerabilidad.

Information

Published : 2025-11-05 15:15

Updated : 2026-10-18 21:10

NVD link : CVE-2025-46784

Mitre link : CVE-2025-46784

CVE.ORG link : CVE-2025-46784

JSON object : View

Products Affected

entrouvert

lasso

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

{"id": "CVE-2025-46784", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-46784", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-11-05T19:01:04.745056Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "talos-cna@cisco.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "talos-cna@cisco.com", "affectedData": [{"vendor": "Entr'ouvert", "product": "Lasso", "versions": [{"status": "affected", "version": "2.5.1"}]}]}], "published": "2025-11-05T15:15:39.030", "references": [{"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2195", "tags": ["Exploit", "Third Party Advisory"], "source": "talos-cna@cisco.com"}, {"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2195", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "talos-cna@cisco.com", "description": [{"lang": "en", "value": "CWE-401"}]}], "descriptions": [{"lang": "en", "value": "A denial of service vulnerability exists in the lasso_node_init_from_message_with_format functionality of Entr'ouvert Lasso 2.5.1. A specially crafted SAML response can lead to a memory depletion, resulting in denial of service. An attacker can send a malformed SAML response to trigger this vulnerability."}, {"lang": "es", "value": "Una vulnerabilidad de denegaci\u00f3n de servicio existe en la funcionalidad lasso_node_init_from_message_with_format de Entr'ouvert Lasso 2.5.1. Una respuesta SAML especialmente dise\u00f1ada puede provocar un agotamiento de memoria, lo que resulta en una denegaci\u00f3n de servicio. Un atacante puede enviar una respuesta SAML malformada para activar esta vulnerabilidad."}], "lastModified": "2026-10-18T21:10:00.120", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:entrouvert:lasso:2.5.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7177DC8A-9874-45BA-BC80-17604D8A0875"}], "operator": "OR"}]}], "sourceIdentifier": "talos-cna@cisco.com"}