CVE-2004-0126: n/a vulnerability

CVE-2004-0126: The jail_attach system call in FreeBSD 5.1 and 5.2 changes the directory of a calling process even if the p...

The jail_attach system call in FreeBSD 5.1 and 5.2 changes the directory of a calling process even if the process doesn't have permission to change directory, which allows local users to gain read/write privileges to files and directories within another jail.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 00:10 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2004-0126 affects FreeBSD 5.1 and 5.2 jail isolation. A local user could abuse the jail_attach system call to access files inside another jail with read/write privileges. This matters mainly for legacy FreeBSD systems using jails to separate users, services, or tenants. Exposure appears limited to FreeBSD 5.1 and 5.2 systems using jails, especially where untrusted or semi-trusted local users can execute processes. Modern supported FreeBSD versions are not identified as affected in the provided sources. Low for most organizations unless legacy FreeBSD 5.1 or 5.2 jail hosts remain in production. If present in multi-user or tenant environments, treat as a priority isolation failure because jail boundaries may not protect data as expected. Mitigation focus: Identify any FreeBSD 5.1 or 5.2 systems still in operation.; Prioritize systems using jails with local or tenant user access.; Review and follow FreeBSD-SA-04:03 vendor guidance..

Prepared: Jul 11, 2026, 23:19 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 1, 2004, 04:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
freebsd-jailattach-gain-privileges(15344)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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