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Medium 4.4Known exploited (CISA KEV)Published Mar 14, 2023
CVE-2023-24880Windows SmartScreen Security Feature Bypass Vulnerability
Updated under an hour ago ()
Does this affect you?
It affects Microsoft Windows 10 Version 1809 and 9 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Mar 14, 2023; federal agencies had to remediate by Apr 4, 2023, and it is known to be used in ransomware. Treat that date as your deadline.
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Windows SmartScreen Security Feature Bypass Vulnerability
- CVSS
- 4.4 MEDIUM (v3.1, CNA)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
- Weakness (CWE)
- CWE-863
- Known exploited
- Added to CISA KEV Mar 14, 2023; federal remediation due Apr 4, 2023; known ransomware useApply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 78.00% (percentile 100)
- Assigned by
- microsoft
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Microsoft Windows 10 Version 1809 microsoft:windows_10_1809 | from 10.0.17763.0 before 10.0.17763.4131 | CNA record |
Microsoft Windows Server 2019 microsoft:windows_server_2019 (from the name) | from 10.0.17763.0 before 10.0.17763.4131 | CNA record |
Microsoft Windows Server 2022 microsoft:windows_server_2022 (from the name) | from 10.0.20348.0 before 10.0.20348.1607 | CNA record |
Microsoft Windows 10 Version 20H2 microsoft:windows_10_20h2 | from 10.0.0 before 10.0.19042.2728 | CNA record |
Microsoft Windows 11 version 21H2 microsoft:windows_11_21h2 | from 10.0.0 before 10.0.22000.1696 | CNA record |
Microsoft Windows 10 Version 21H2 microsoft:windows_10_21h2 | from 10.0.19043.0 before 10.0.19044.2728 | CNA record |
Microsoft Windows 11 version 22H2 microsoft:windows_11_22h2 | from 10.0.22621.0 before 10.0.22621.1413 | CNA record |
Microsoft Windows 10 Version 22H2 microsoft:windows_10_22h2 | from 10.0.19045.0 before 10.0.19045.2728 | CNA record |
Microsoft Windows 10 Version 1607 microsoft:windows_10_1607 | from 10.0.14393.0 before 10.0.14393.5786 | CNA record |
Microsoft Windows Server 2016 microsoft:windows_server_2016 (from the name) | from 10.0.14393.0 before 10.0.14393.5786 | CNA record |
microsoft windows_10_1607 microsoft:windows_10_1607 | before 10.0.14393.5786 | NVD |
microsoft windows_10_1809 microsoft:windows_10_1809 | before 10.0.17763.4131 | NVD |
microsoft windows_10_20h2 microsoft:windows_10_20h2 | before 10.0.19042.2728 | NVD |
microsoft windows_10_21h2 microsoft:windows_10_21h2 | before 10.0.19044.2728 | NVD |
microsoft windows_10_22h2 microsoft:windows_10_22h2 | before 10.0.19045.2728 | NVD |
microsoft windows_11_21h2 microsoft:windows_11_21h2 | before 10.0.22000.1696 | NVD |
microsoft windows_11_22h2 microsoft:windows_11_22h2 | before 10.0.22000.1413 | NVD |
microsoft windows_server_2016 microsoft:windows_server_2016 | before 10.0.14393.5786 | NVD |
microsoft windows_server_2019 microsoft:windows_server_2019 | before 10.0.17763.4131 | NVD |
microsoft windows_server_2022 microsoft:windows_server_2022 | before 10.0.20348.1602 | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24880vendor-advisory, patch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-24880us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.