How severe is CVE-2023-24880?

CVE-2023-24880 has a CVSS 3.1 base score of 4.4 (MEDIUM). EPSS estimates a 78.0% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2023-24880: Windows SmartScreen Security Feature Bypass

CISA Known Exploited Vulnerabilities

Microsoft Windows SmartScreen Security Feature Bypass Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2023-03-14

Remediation due

2023-04-04

Ransomware

Known use

Required action
Apply updates per vendor instructions.

CISA notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-24880; https://nvd.nist.gov/vuln/detail/CVE-2023-24880

Description

Windows SmartScreen Security Feature Bypass Vulnerability

Severity

CVSS 3.1 · CNA4.4 MEDIUM

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

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impactpartial

Exploitation Context

as of October 13, 2026

All KEV statistics→

CISA added CVE-2023-24880 to the KEV catalog on the day its CVE record was published. The median for entries added in 2023 is 12 days.
It is one of 390 Microsoft entries in the CISA KEV catalog, and one of 27 added in 2023.
Its current EPSS score (78.0%) is higher than that of 62% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
Microsoft	Microsoft Windows 10 Version 1809	10.0.17763.0 to <10.0.17763.4131
Microsoft	Microsoft Windows 10 Version 1809	10.0.0 to <10.0.17763.4131
Microsoft	Microsoft Windows Server 2019	10.0.17763.0 to <10.0.17763.4131
Microsoft	Microsoft Windows Server 2019 (Server Core installation)	10.0.17763.0 to <10.0.17763.4131
Microsoft	Microsoft Windows Server 2022	10.0.20348.0 to <10.0.20348.1607
Microsoft	Microsoft Windows 10 Version 20H2	10.0.0 to <10.0.19042.2728
Microsoft	Microsoft Windows 11 version 21H2	10.0.0 to <10.0.22000.1696
Microsoft	Microsoft Windows 10 Version 21H2	10.0.19043.0 to <10.0.19044.2728
Microsoft	Microsoft Windows 11 version 22H2	10.0.22621.0 to <10.0.22621.1413
Microsoft	Microsoft Windows 10 Version 22H2	10.0.19045.0 to <10.0.19045.2728
Microsoft	Microsoft Windows 10 Version 1607	10.0.14393.0 to <10.0.14393.5786
Microsoft	Microsoft Windows Server 2016	10.0.14393.0 to <10.0.14393.5786
Microsoft	Microsoft Windows Server 2016 (Server Core installation)	10.0.14393.0 to <10.0.14393.5786

References

1 Links

Vendor advisories

Windows SmartScreen Security Feature Bypass Vulnerability

Record Details

Published

2023-03-14

Last updated

2025-10-21

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.