SARA / Free Tools / CVE / CVE-2023-24880

CVE-2023-24880 — Microsoft Windows SmartScreen Security Feature Bypass Vulnerability

Windows SmartScreen Security Feature Bypass Vulnerability

CVSS

4.4 MEDIUM

EPSS

73.31% (top 1.20%)

CWE

—

Published

2023-03-14T16:55:59.434Z

Last modified

2025-10-21T23:15:23.552Z

CVSS vector

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

CISA KEV — Actively Exploited

Added to KEV

2023-03-14

BOD 22-01 due

2023-04-04

Ransomware use

Known

View KEV detail

01What is this vulnerability?

Windows SmartScreen Security Feature Bypass Vulnerability

Vendor	Product	Versions
Microsoft	Windows 10 Version 1809	10.0.17763.0
Microsoft	Windows 10 Version 1809	10.0.0
Microsoft	Windows Server 2019	10.0.17763.0
Microsoft	Windows Server 2019 (Server Core installation)	10.0.17763.0
Microsoft	Windows Server 2022	10.0.20348.0
Microsoft	Windows 10 Version 20H2	10.0.0
Microsoft	Windows 11 version 21H2	10.0.0
Microsoft	Windows 10 Version 21H2	10.0.19043.0
Microsoft	Windows 11 version 22H2	10.0.22621.0
Microsoft	Windows 10 Version 22H2	10.0.19045.0
Microsoft	Windows 10 Version 1607	10.0.14393.0
Microsoft	Windows Server 2016	10.0.14393.0
Microsoft	Windows Server 2016 (Server Core installation)	10.0.14393.0

Yes — actively exploited. Added to the CISA KEV catalog on 2023-03-14. Ransomware use: Known.

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

msrc.microsoft.com — https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24880

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