What is CVE-2012-0871?

CVE-2012-0871 is a vulnerability in Systemd Project, classified under Improper Link Resolution Before File Access. Published 2014-04-18.

Is CVE-2012-0871 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Systemd Project

CVE-2012-0871

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/.

Published 2014-04-18 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 6.3 (Medium). Vector: AV:L/AC:M/Au:N/C:N/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.004 (26.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Systemd Project — versions 1, 2, 3
openSUSE — versions 12.1

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2012-0871?: CVE-2012-0871 is a vulnerability in Systemd Project, classified under Improper Link Resolution Before File Access. Published 2014-04-18.
Is CVE-2012-0871 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.