Skip to content
Fencer Intel
high 7.3

CVE-2017-7358 json

In LightDM through 1.22.0, a directory traversal issue in debian/guest-account.sh allows local attackers to own arbitrary directory path lo…

published 2017-04-05 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16385

cvss
7.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 85%
public exploits
1
Exploit-DB

Summary

In LightDM through 1.22.0, a directory traversal issue in debian/guest-account.sh allows local attackers to own arbitrary directory path locations and escalate privileges to root when the guest user logs out.

Patch / fix

  • lightdm Ubuntu 16.04 LTS 1.18.3-0ubuntu1.1

ubuntu advisories UBUNTU-CVE-2017-7358

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Timeline

  1. Published
  2. First public exploit (EDB-41923)

Exploit prediction

2.67% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-41923 LightDM (Ubuntu 16.04/16.10) - 'Guest Account' Local Privilege Escalation local, 2017-04-25

CVSS scores

assigned by version score vector
NVD 3.0 7.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.