CVE-2024-25941

Cross-jail TTY disclosure via unfiltered kern.ttys

Published Feb 15, 2024 · Updated Feb 13, 2025

Information disclosure in FreeBSD 13.2-RELEASE through p9 and 14.0-RELEASE through p4 allows local users to read TTY allocation data. The kern.ttys sysctl omits jail-based filtering and returns allocated terminal records from the host and other jails to the current jail. A user with code execution inside a jail can obtain the terminal allocation information exposed by pstat -t without altering host or jail state.

CVSS severity3.3
Low
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in FreeBSD 13.2-RELEASE through p9 and 14.0-RELEASE through p4 allows local users to read TTY allocation data. The kern.ttys sysctl omits jail-based filtering and returns allocated terminal records from the host and other jails to the current jail. A user with code execution inside a jail can obtain the terminal allocation information exposed by pstat -t without altering host or jail state.

The record

CVE
CVE-2024-25941
Published
Feb 15, 2024
Updated
Feb 13, 2025
Vendor
The FreeBSD Project
Product
FreeBSD
Classifications
T1057
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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=13.2-RELEASE <p10
  2. Affected versionversion=14.0-RELEASE <p5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The FreeBSD Project · FreeBSDversion=13.2-RELEASE <p10; version=14.0-RELEASE <p5

Published CVSS scores

3.3CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1057Process Discovery

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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