CVE-2023-43090Public exploit

Locked-window disclosure via screenshot mode shortcuts

Published Sep 22, 2023 · Updated Aug 2, 2024

Missing authorization in GNOME Shell 42.x, 43.0 through 43.8, and 44.0 through 44.4 allows local users to view locked-session windows. The lock-screen screenshot interface accepts V and W keyboard shortcuts even when its video and window-selection controls are disabled, exposing previews of open windows. Reachability requires local access to the keyboard of a locked graphical session; the reported consequence is viewing window contents, not changing them.

CVSS severity5.5
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in GNOME Shell 42.x, 43.0 through 43.8, and 44.0 through 44.4 allows local users to view locked-session windows. The lock-screen screenshot interface accepts V and W keyboard shortcuts even when its video and window-selection controls are disabled, exposing previews of open windows. Reachability requires local access to the keyboard of a locked graphical session; the reported consequence is viewing window contents, not changing them.

The record

CVE
CVE-2023-43090
Published
Sep 22, 2023
Updated
Aug 2, 2024
Vendor
GNOME
Product
GNOME Shell
Classifications
CWE-862, T1113
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <42.*
  2. Affected versionversion=43.0 <43.9
  3. Affected versionversion=44.0 <44.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

GNOME · GNOME Shellversion=0 <42.*; version=43.0 <43.9; version=44.0 <44.5

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.5Fedora ProjectCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1113Screen Capture

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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