CVE-2012-0871

The session_link_x11_socket function in login/logind-session.c in systemd-logind in systemd,...

6.3 MediumFix available

The session_link_x11_socket function in login/logind-session.c in systemd-logind in systemd, possibly 37 and earlier, allows local users to create or overwrite arbitrary files via a symlink attack on the X11 user directory in /run/user/.

Exploit likelihood

0.35%Down 0.6 points since Feb 4, 2022

What each source reports

NVD Score used 6.3

Record: CVE-2012-0871
CVSS 2.0: 6.3 MediumAV:L/AC:M/Au:N/C:N/I:C/A:C
Weakness: CWE-59
Updated: 2026-11-02

CVE List No score

Record: CVE-2012-0871
Updated: 2026-11-02

EUVDEUVD-2012-0896 No score

Record: EUVD-2012-0896
Updated: 2026-11-03

GitHub AdvisoriesGHSA-jv9q-v37q-34vv No score

The session_link_x11_socket function in login/logind-session.c in systemd-logind in systemd,...

Record: GHSA-jv9q-v37q-34vv
Weakness: CWE-59
Updated: 2026-11-02

OSV No score

Record: CVE-2012-0871
Updated: 2026-11-02

OSVDEBIAN-CVE-2012-0871 No score

Record: DEBIAN-CVE-2012-0871
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`systemd` Debian:12	before 43-1	43-1
`systemd` Debian:13	before 43-1	43-1
`systemd` Debian:14	before 43-1	43-1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2012-0871 is a medium vulnerability (CVSS 6.3) in Systemd Project Systemd, published April 18, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 29th percentile. Fixed in systemd 43-1.