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CVE-2025-46404

Quick assessment

Affected
Entr'ouvert Lasso
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Entrouvert Lasso是法国Entrouvert开源的一个单点登录协议实现库。 Entrouvert Lasso 2.5.1版本存在安全漏洞，该漏洞源于lasso_provider_verify_saml_signature功能处理特制SAML响应不当，可能导致拒绝服务。

CVSS 7.5 · High EPSS 0.59% · P46

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-46404

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Entrouvert Lasso 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Entrouvert Lasso是法国Entrouvert开源的一个单点登录协议实现库。 Entrouvert Lasso 2.5.1版本存在安全漏洞，该漏洞源于lasso_provider_verify_saml_signature功能处理特制SAML响应不当，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Entr'ouvert Lasso 2.5.1 -

II. Public POCs for CVE-2025-46404

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III. Intelligence Information for CVE-2025-46404

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Same Patch Batch · Entr'ouvert · 2025-11-05 · 4 CVEs total

CVE-2025-47151 9.8 CRITICAL Entrouvert Lasso 安全漏洞
CVE-2025-46784 7.5 HIGH Entrouvert Lasso 安全漏洞
CVE-2025-46705 7.5 HIGH Entrouvert Lasso 安全漏洞

IV. Related Vulnerabilities

Same product: Lasso
Same vendor: Entr'ouvert
Same weakness: CWE-476

V. Comments for CVE-2025-46404

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