CVE-2023-24880Windows SmartScreen Security Feature Bypass Vulnerability
- 4.4MediumCVSS base score
- 78.2%Exploitation in 30 daysEPSS · top 0.4% of all CVEs
- YesKnown exploitedin CISA's KEV since 14 Mar 2023
- YesPublic exploitsa reference or SSVC says so
Description
Windows SmartScreen Security Feature Bypass Vulnerability
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft Windows SmartScreen Security Feature Bypass Vulnerability.
- Added
- 14 Mar 2023
- Fix due (US federal)
- 4 Apr 2023
- Used by ransomware
- Known
Apply updates per vendor instructions.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 14 Mar 2023.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
Timeline
ID reserved
By microsoft
- 42 days later
· 42 days later
Published
Added to CISA KEV
Known exploited, also by ransomware
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoftCNA (assigner) | 3.1 | Medium4.4 | 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 |
| NVDNVD · Analyzed | 3.1 | Medium4.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L |
- EPSS (exploitation in 30 days)
- 78.2% · top 0.4% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.4.
Affected products
Microsoft · Windows 10 Version 1809
- affected 10.0.17763.0 – < 10.0.17763.4131
Microsoft · Windows 10 Version 1809
- affected 10.0.0 – < 10.0.17763.4131
Microsoft · Windows Server 2019
- affected 10.0.17763.0 – < 10.0.17763.4131
Microsoft · Windows Server 2019 (Server Core installation)
- affected 10.0.17763.0 – < 10.0.17763.4131
Microsoft · Windows Server 2022
- affected 10.0.20348.0 – < 10.0.20348.1607
Microsoft · Windows 10 Version 20H2
- affected 10.0.0 – < 10.0.19042.2728
Microsoft · Windows 11 version 21H2
- affected 10.0.0 – < 10.0.22000.1696
Microsoft · Windows 10 Version 21H2
- affected 10.0.19043.0 – < 10.0.19044.2728
Microsoft · Windows 11 version 22H2
- affected 10.0.22621.0 – < 10.0.22621.1413
Microsoft · Windows 10 Version 22H2
- affected 10.0.19045.0 – < 10.0.19045.2728
Microsoft · Windows 10 Version 1607
- affected 10.0.14393.0 – < 10.0.14393.5786
Microsoft · Windows Server 2016
- affected 10.0.14393.0 – < 10.0.14393.5786
Microsoft · Windows Server 2016 (Server Core installation)
- affected 10.0.14393.0 – < 10.0.14393.5786
References
References2
- Windows SmartScreen Security Feature Bypass Vulnerability (opens in a new tab)vendor-advisoryx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-24880 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-28870 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-24880)Record last updated .