CVE-2023-43090

Name: CVE-2023-43090
Creator: NVD / NIST
Published: 2023-09-22T06:15:09.81+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2023-43090 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A vulnerability was found in GNOME Shell. GNOME Shell's lock screen allows an unauthenticated local user to view windows of the locked desktop session by using keyboard shortcuts to unlock the restricted functionality of the screenshot tool.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

A vulnerability was found in GNOME Shell. GNOME Shell's lock screen allows an unauthenticated local user to view windows of the locked desktop session by using keyboard shortcuts to unlock the restricted functionality of the screenshot tool.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.31%

22.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Gnome	Gnome-Shell	>= 43, < 43.9
Gnome	Gnome-Shell	>= 44, < 44.5
Gnome	Gnome-Shell	42
Fedoraproject	Fedora	37
Fedoraproject	Fedora	38

References

https://access.redhat.com/security/cve/CVE-2023-43090Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2239087Issue Tracking, Third Party Advisory
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6990Exploit, Issue Tracking, Patch, Vendor Advisory
https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2944Patch, Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-43090Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2239087Issue Tracking, Third Party Advisory
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6990Exploit, Issue Tracking, Patch, Vendor Advisory
https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2944Patch, Vendor Advisory

Timeline

Published: Sep 22, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-43090?

How severe is CVE-2023-43090?

CVE-2023-43090 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2023-43090?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-43090?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST