Vulnerability · Published Apr 29, 2025 · Assigned by GitHub_M
CVE-2025-29906Finit bundled getty can bypass /bin/login
High 8.6
In plain English
A high-severity improper authentication in finit from troglobit. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.6High
Exploit odds (30 days)0.2%top 87.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Finit is a fast init for Linux systems. Versions starting from 3.0-rc1 and prior to version 4.11 bundle an implementation of getty for the `tty` configuration directive that can bypass `/bin/login`, i.e., a user can log in as any user without authentication. This issue has been patched in version 4.11.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | finit | no fix listed | DEBIAN-CVE-2025-29906 |
| Debian:13 | finit | 4.11-1 | DEBIAN-CVE-2025-29906 |
| Debian:14 | finit | 4.11-1 | DEBIAN-CVE-2025-29906 |
| Ubuntu:22.04:LTS | finit | no fix listed | UBUNTU-CVE-2025-29906 |
| Ubuntu:24.04:LTS | finit | no fix listed | UBUNTU-CVE-2025-29906 |
| Ubuntu:25.10 | finit | no fix listed | UBUNTU-CVE-2025-29906 |
| Ubuntu:26.04:LTS | finit | no fix listed | UBUNTU-CVE-2025-29906 |
| Ubuntu:26.10 | finit | no fix listed | UBUNTU-CVE-2025-29906 |
Affected products (as reported)
Weakness: CWE-287 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H