CVE-2024-43521 json
Windows Hyper-V Denial of Service Vulnerability
published 2024-10-08 2 y ago modified 2026-08-19 2 mo ago also EUVD-2024-40775
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.4%
- EPSS 2.4% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
Windows Hyper-V Denial of Service Vulnerability
Patch / fix
- Microsoft Windows Server 2012 6.2.9200.25118
- Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.25118
- Microsoft Windows Server 2012 R2 6.3.9600.22221
- Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.22221
- Microsoft Windows Server 2016 10.0.14393.7428
- Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.7428
- Microsoft Windows Server 2019 10.0.17763.6414
- Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.6414
- Microsoft Windows Server 2022 10.0.20348.2762
- Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1189
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
2.45% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Microsoft Windows Server 2012
- Microsoft Windows Server 2012 (Server Core installation)
- Microsoft Windows Server 2012 R2
- Microsoft Windows Server 2012 R2 (Server Core installation)
- Microsoft Windows Server 2016
- Microsoft Windows Server 2016 (Server Core installation)
- Microsoft Windows Server 2019
- Microsoft Windows Server 2019 (Server Core installation)
- Microsoft Windows Server 2022
- Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
Classification
- Weakness
-
- CWE-253 Incorrect Check of Function Return Value
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2024-43521
vendor-advisory, patch
Sources
- CVE List CVE-2024-43521
- NVD CVE-2024-43521
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.