Skip to content
Fencer Intel
high 7.2

CVE-2015-7496 json

GNOME Display Manager (gdm) before 3.18.2 allows physically proximate attackers to bypass the lock screen by holding the Escape key.

published 2015-11-24 10 y ago modified 2026-06-17 4 mo ago also EUVD-2015-7420

cvss
7.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

GNOME Display Manager (gdm) before 3.18.2 allows physically proximate attackers to bypass the lock screen by holding the Escape key.

Patch / fix

  • gdm3 Debian 14, Debian 13, Debian 12 3.18.2-1

debian advisories DEBIAN-CVE-2015-7496

  • gdm RHEL 7 1:3.22.3-11.el7
  • gnome-session RHEL 7 3.22.3-4.el7
  • gnome-session-xsession RHEL 7 3.22.3-4.el7
  • gnome-session-custom-session RHEL 7 3.22.3-4.el7

red hat advisories RHSA-2017:2128

  • gdm openSUSE Tumbleweed 3.22.1-1.2

opensuse advisories openSUSE-SU-2024:10412-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-7496 updated cvss 4.3

gdm: Crash when holding Escape in log screen

  • Red Hat Enterprise Linux Client (v. 7) gdm 3.22.3-11.el7, gnome-session 3.22.3-4.el7, gnome-session-xsession 3.22.3-4.el7 Red Hat Enterprise Linux Client Optional (v. 7) gnome-session-custom-session 3.22.3-4.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) gdm 3.22.3-11.el7, gnome-session 3.22.3-4.el7, gnome-session-xsession 3.22.3-4.el7, gnome-session-custom-session 3.22.3-4.el7 Red Hat Enterprise Linux Server (v. 7) gdm 3.22.3-11.el7, gnome-session 3.22.3-4.el7, gnome-session-xsession 3.22.3-4.el7 Red Hat Enterprise Linux Server Optional (v. 7) gnome-session-custom-session 3.22.3-4.el7 Red Hat Enterprise Linux Workstation (v. 7) gdm 3.22.3-11.el7, gnome-session 3.22.3-4.el7, gnome-session-xsession 3.22.3-4.el7
    +1 more products
    Red Hat Enterprise Linux Workstation Optional (v. 7) gnome-session-custom-session 3.22.3-4.el7
    fixed: vendor fix RHSA-2017:2128
  • Red Hat Enterprise Linux 5 gdm Red Hat Enterprise Linux 6 gdm, gdm-libs, gdm-plugin-smartcard, gdm-plugin-fingerprint, gdm-user-switch-applet
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

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.