5

CVE-2013-4392: systemd_project systemd Link Following

CVSS: 5.0v3.1MediumModified
AliasesDEBIAN-CVE-2013-4392CGA-25c4-w367-x4pmCGA-5qh6-9g6w-7cvq
Published 28-10-2013Last modified 09-06-2025
Open JSON

Vulnerability summary

CVE-2013-4392 is a medium (CVSS 5.0) Link Following vulnerability in systemd_project systemd. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.1% of scored vulnerabilities.

Overall risk
20/100
0100
Low · default modelHow is this calculated?
CVSS score
5.0/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.47%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-3633-X4F7-4R7F

Timeline

  1. 28-10-2013
    PublishedVulnerability first disclosed.
  2. 09-06-2025
    Last modifiedVulnerability information updated.

Description

systemd, when updating file permissions, allows local users to change the permissions and SELinux security contexts for arbitrary files via a symlink attack on unspecified files.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.47%

Chance of exploitation in the next 30 days

Percentile

39%

Versus all other CVEs

30-day change

0.00 pp

From 0.47% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.47%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard5 products
  • py3-systemdAll versions (No fix recorded)
  • py3.10-systemdAll versions (No fix recorded)
  • py3.11-systemdAll versions (No fix recorded)
  • py3.12-systemdAll versions (No fix recorded)
  • py3.13-systemdAll versions (No fix recorded)
Debian1 product
  • systemdAll versions (No fix recorded)
Systemd_project1 product

3 vendors · 7 products

References

4 links