kbrain

CVE-2009-2904

MEDIUM · CVSS 6.9EPSS 0.3%EU EUVD

A certain Red Hat modification to the ChrootDirectory feature in OpenSSH 4.8, as used in sshd in OpenSSH 4.3 in Red Hat Enterprise Linux (RHEL) 5.4 and Fedora 11, allows local users to gain privileges via hard links to setuid programs that use configuration files within the chroot directory, related to requirements for directory ownership.

Key facts

CVSS score
6.9 (v2.0)
Severity
MEDIUM
CVSS vector
AV:L/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE)
CWE-16
EPSS score
0.3% (25th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2009-2892)
Published
October 1, 2009
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-2892 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • fedoraproject / fedora
  • openbsd / openssh
  • openbsd / openssh
  • redhat / enterprise linux
  • redhat / enterprise linux desktop
  • redhat / enterprise linux eus

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain