CVE-2025-29906

Unauthenticated login via option-like username parsing

Published Apr 29, 2025 · Updated Apr 30, 2025

Authentication bypass in Troglobit Finit 3.0-rc1 through 4.10 allows local users to log in as any user without authentication. The bundled getty's exec_login function passes the entered username to /bin/login without a -- separator, so option-like input is parsed as login options instead of an account name. Exploitation requires interaction with a TTY configured to use the bundled getty and grants the selected account's access, including root.

CVSS severity8.6
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Troglobit Finit 3.0-rc1 through 4.10 allows local users to log in as any user without authentication. The bundled getty's exec_login function passes the entered username to /bin/login without a -- separator, so option-like input is parsed as login options instead of an account name. Exploitation requires interaction with a TTY configured to use the bundled getty and grants the selected account's access, including root.

The record

CVE
CVE-2025-29906
Published
Apr 29, 2025
Updated
Apr 30, 2025
Vendor
Troglobit
Product
Finit
Classifications
CWE-287, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 3.0-rc1, < 4.11

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Troglobit · Finitversion=>= 3.0-rc1, < 4.11

Published CVSS scores

8.6GitHubCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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