CVE-2023-24880 kev+ ransomware in the critical feed json
Windows SmartScreen Security Feature Bypass Vulnerability
published 2023-03-14 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-28870
- cvss
- 4.4
- version 3.1, CNA
- cisa kev
- Exploited
- added 2023-03-14, used in ransomware
- epss
- 78.2%
- EPSS 78.2% chance of exploitation in 30 days, percentile 99.5%
- public exploits
- 0
- none known
Summary
Windows SmartScreen Security Feature Bypass Vulnerability
Patch / fix
cisa required action Apply updates per vendor instructions.
- Microsoft Windows 10 Version 1809 10.0.17763.4131
- Microsoft Windows Server 2019 10.0.17763.4131
- Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.4131
- Microsoft Windows Server 2022 10.0.20348.1607
- Microsoft Windows 10 Version 20H2 10.0.19042.2728
- Microsoft Windows 11 version 21H2 10.0.22000.1696
- Microsoft Windows 10 Version 21H2 10.0.19044.2728
- Microsoft Windows 11 version 22H2 10.0.22621.1413
- Microsoft Windows 10 Version 22H2 10.0.19045.2728
- Microsoft Windows 10 Version 1607 10.0.14393.5786
- Microsoft Windows Server 2016 10.0.14393.5786
- Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.5786
Timeline
- Added to CISA KEV
- Published
- CISA patch deadline
- CISA SSVC: exploitation active
Known exploited
- Added
- 3 y ago
- Patch by
- 2023-04-04 (3 y ago)
- Ransomware
- Known to be used in ransomware campaigns
- Required action
- Apply updates per vendor instructions.
- Vendor, product
- Microsoft, Windows
- CISA name
- Microsoft Windows SmartScreen Security Feature Bypass Vulnerability
Ransomware
Groups reported to have exploited it in intrusions.
- Magniber ransomware gang
reported by blog.google
Ransomware Vulnerability Matrix by BushidoUK (github.com/BushidoUK/Ransomware-Vulnerability-Matrix), reformatted per CVE. CC BY 4.0
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
78.15% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.4 | 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 |
| CNA | 3.1 | 4.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L |
Affected products
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Microsoft Windows Server 2019 (Server Core installation)
- Microsoft Windows Server 2022
- Microsoft Windows 10 Version 20H2
- Microsoft Windows 11 version 21H2
- Microsoft Windows 10 Version 21H2
- Microsoft Windows 11 version 22H2
- Microsoft Windows 10 Version 22H2
- Microsoft Windows 10 Version 1607
- Microsoft Windows Server 2016
- Microsoft Windows Server 2016 (Server Core installation)
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2023-24880
vendor-advisory, patch
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-24880
government-resource, us-government-resource
Sources
- CVE List CVE-2023-24880
- NVD CVE-2023-24880
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.