GNOME Display Manager (gdm) before 3.18.2 allows physically proximate attackers to bypass…
Priority LOW 32CWE-264Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.
Summary
GNOME Display Manager (gdm) before 3.18.2 allows physically proximate attackers to bypass the lock screen by holding the Escape key.
Why it matters now
EPSS 0.00406 35th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* | 23 | Vulnerable | Fedoraproject |
| cpe:2.3:a:gnome:gnome_display_manager:*:*:*:*:*:*:*:* | up to 3.18.0 | Vulnerable | GNOME |
- cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* Versions 23 Vulnerable ·Fedoraproject
- cpe:2.3:a:gnome:gnome_display_manager:*:*:*:*:*:*:*:* Versions up to 3.18.0 Vulnerable ·GNOME
Remediation
Red Hat 1 advisory
- RHSA-2017:2128 Released 2017-08-01 · Red Hat rating Moderategdm and gnome-session security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) gdm-1:3.22.3-11.el7, gnome-session-3.22.3-4.el7, gnome-session-xsession-3.22.3-4.el7
- Red Hat Enterprise Linux Client Optional (v. 7) gdm-devel-1:3.22.3-11.el7, gnome-session-custom-session-3.22.3-4.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) gdm-1:3.22.3-11.el7, gdm-devel-1:3.22.3-11.el7, gnome-session-3.22.3-4.el7 +2
- Red Hat Enterprise Linux Server (v. 7) gdm-1:3.22.3-11.el7, gdm-1:3.22.3-11.el7.ppc, gnome-session-3.22.3-4.el7 +1
- Red Hat Enterprise Linux Server Optional (v. 7) gdm-devel-1:3.22.3-11.el7, gdm-devel-1:3.22.3-11.el7.ppc, gnome-session-custom-session-3.22.3-4.el7
- Red Hat Enterprise Linux Workstation (v. 7) gdm-1:3.22.3-11.el7, gnome-session-3.22.3-4.el7, gnome-session-xsession-3.22.3-4.el7
- Red Hat Enterprise Linux Workstation Optional (v. 7) gdm-devel-1:3.22.3-11.el7, gnome-session-custom-session-3.22.3-4.el7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:2128 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:2128 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2017:2128 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:2128 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:2128 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:2128 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:2128 |
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2015-7496
- 2026-10-03 Alias added: GHSA-qwh9-f2h4-mw38
References
Advisory 2
Sources
- CVE-2015-7496 · CVE Program
- CVE-2015-7496 · NVD
- FIRST EPSS
- GHSA-qwh9-f2h4-mw38 · GitHub Advisory Database · CC BY 4.0
- CVE-2015-7496 · Red Hat security data · CC BY 4.0
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