Vulnerability · Published Nov 5, 2025 · Assigned by talos
CVE-2025-46404
High 7.5
In plain English
A high-severity null pointer dereference in Lasso from Entr'ouvert. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.6%top 49.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | lasso | 2.8.1-1+deb12u1 | DSA-6058-1 |
| Debian:12 | lasso | 2.8.1-1+deb12u1 | DEBIAN-CVE-2025-46404 |
| Debian:13 | lasso | 2.8.2-9+deb13u1 | DSA-6058-1 |
| Debian:13 | lasso | 2.8.2-9+deb13u1 | DEBIAN-CVE-2025-46404 |
| Debian:14 | lasso | 2.9.0-1 | DEBIAN-CVE-2025-46404 |
| Ubuntu:22.04:LTS | lasso | 2.7.0-2ubuntu0.1 | USN-7872-1 |
| Ubuntu:22.04:LTS | lasso | 2.7.0-2ubuntu0.1 | UBUNTU-CVE-2025-46404 |
| Ubuntu:24.04:LTS | lasso | 2.8.2-2ubuntu0.1 | UBUNTU-CVE-2025-46404 |
| Ubuntu:24.04:LTS | lasso | 2.8.2-2ubuntu0.1 | USN-7872-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Entr'ouvert | Lasso | 2.5.1 |
Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H