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CVE-2023-24880

Windows SmartScreen Security Feature Bypass Vulnerability

  • Medium 4.4
  • Exploited: added to CISA KEV 14 Mar 2023
  • Used in ransomware campaigns

Description

Windows SmartScreen Security Feature Bypass Vulnerability

Key facts

Published
14 Mar 2023
Last changed
21 Oct 2025
Assigned by
microsoft
KEV added
14 Mar 2023
KEV fix due
4 Apr 2023
Used in ransomware
Yes, according to CISA
EPSS
78.152% likely to be exploited in the next 30 days, higher than 99.583% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: no; Technical impact: partial

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 4.4CVSS 3.1, Mediumfrom the CNA (microsoft)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:F/RL:O/RC:C

What to do

  • Apply updates per vendor instructions.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
MicrosoftWindows 10 Version 1809
  • 10.0.17763.0 up to but excluding 10.0.17763.4131 (affected)
MicrosoftWindows 10 Version 1809
  • 10.0.0 up to but excluding 10.0.17763.4131 (affected)
MicrosoftWindows Server 2019
  • 10.0.17763.0 up to but excluding 10.0.17763.4131 (affected)
MicrosoftWindows Server 2019 (Server Core installation)
  • 10.0.17763.0 up to but excluding 10.0.17763.4131 (affected)
MicrosoftWindows Server 2022
  • 10.0.20348.0 up to but excluding 10.0.20348.1607 (affected)
MicrosoftWindows 10 Version 20H2
  • 10.0.0 up to but excluding 10.0.19042.2728 (affected)
MicrosoftWindows 11 version 21H2
  • 10.0.0 up to but excluding 10.0.22000.1696 (affected)
MicrosoftWindows 10 Version 21H2
  • 10.0.19043.0 up to but excluding 10.0.19044.2728 (affected)
MicrosoftWindows 11 version 22H2
  • 10.0.22621.0 up to but excluding 10.0.22621.1413 (affected)
MicrosoftWindows 10 Version 22H2
  • 10.0.19045.0 up to but excluding 10.0.19045.2728 (affected)
MicrosoftWindows 10 Version 1607
  • 10.0.14393.0 up to but excluding 10.0.14393.5786 (affected)
MicrosoftWindows Server 2016
  • 10.0.14393.0 up to but excluding 10.0.14393.5786 (affected)
MicrosoftWindows Server 2016 (Server Core installation)
  • 10.0.14393.0 up to but excluding 10.0.14393.5786 (affected)

Timeline

  1. 14 Mar 2023 CVE-2023-24880 added to CISA KEV
  2. 14 Mar 2023 Added to the CISA KEV catalogue
  3. 14 Mar 2023 Published

Weakness

References