CVE-2024-43573Windows MSHTML Platform Spoofing Vulnerability
- 6.5MediumCVSS base score
- 46.1%Exploitation in 30 daysEPSS · top 1.2% of all CVEs
- YesKnown exploitedin CISA's KEV since 8 Oct 2024
- YesPublic exploitsa reference or SSVC says so
Description
Windows MSHTML Platform Spoofing Vulnerability
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft Windows MSHTML Platform Spoofing Vulnerability.
- Added
- 8 Oct 2024
- Fix due (US federal)
- 29 Oct 2024
- Used by ransomware
- Not known
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 8 Oct 2024.
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
- 55 days later
· 55 days later
Published
Added to CISA KEV
Known exploited in the wild
- 23 months later
· 23 months 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 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C |
| NVDNVD · Analyzed | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 46.1% · top 1.2% of all CVEs (12 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 6.5.
Affected products
Microsoft · Windows 10 Version 1507
- affected 10.0.10240.0 – < 10.0.10240.20796
Microsoft · Windows 10 Version 1607
- affected 10.0.14393.0 – < 10.0.14393.7428
Microsoft · Windows 10 Version 1809
- affected 10.0.17763.0 – < 10.0.17763.6414
Microsoft · Windows 10 Version 21H2
- affected 10.0.19043.0 – < 10.0.19044.5011
Microsoft · Windows 10 Version 22H2
- affected 10.0.19045.0 – < 10.0.19045.5011
Microsoft · Windows 11 version 21H2
- affected 10.0.22000.0 – < 10.0.22000.3260
Microsoft · Windows 11 version 22H2
- affected 10.0.22621.0 – < 10.0.22621.4317
Microsoft · Windows 11 version 22H3
- affected 10.0.22631.0 – < 10.0.22631.4317
Microsoft · Windows 11 Version 23H2
- affected 10.0.22631.0 – < 10.0.22631.4317
Microsoft · Windows 11 Version 24H2
- affected 10.0.26100.0 – < 10.0.26100.2033
Microsoft · Windows Server 2012 R2
- affected 6.3.9600.0 – < 6.3.9600.22221
Microsoft · Windows Server 2012 R2 (Server Core installation)
- affected 6.3.9600.0 – < 6.3.9600.22221
Microsoft · Windows Server 2016
- affected 10.0.14393.0 – < 10.0.14393.7428
Microsoft · Windows Server 2016 (Server Core installation)
- affected 10.0.14393.0 – < 10.0.14393.7428
Microsoft · Windows Server 2019
- affected 10.0.17763.0 – < 10.0.17763.6414
Microsoft · Windows Server 2019 (Server Core installation)
- affected 10.0.17763.0 – < 10.0.17763.6414
Microsoft · Windows Server 2022
- affected 10.0.20348.0 – < 10.0.20348.2762
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)
- affected 10.0.25398.0 – < 10.0.25398.1189
References
References2
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-2024-40327 (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-2024-43573)Record last updated .