CVE-2025-62567
published 2025-12-09CVE-2025-62567: Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny service over a network.
PriorityP431medium5.3CVSS 3.1
AVNACHPRLUINSUCNINAH
EPSS
0.97%
58.0th percentile
Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny service over a network.
Affected
39 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_1607 | < 10.0.14393.8688 | 10.0.14393.8688 |
| microsoft | windows_10_1809 | < 10.0.17763.8146 | 10.0.17763.8146 |
| microsoft | windows_10_21h2 | < 10.0.19044.6691 | 10.0.19044.6691 |
| microsoft | windows_10_22h2 | < 10.0.19045.6691 | 10.0.19045.6691 |
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < 10.0.14393.8688 | 10.0.14393.8688 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.8146 | 10.0.17763.8146 |
| microsoft | windows_10_version_21h2 | >= 10.0.19044.0 < 10.0.19044.6691 | 10.0.19044.6691 |
| microsoft | windows_10_version_22h2 | >= 10.0.19045.0 < 10.0.19045.6691 | 10.0.19045.6691 |
| microsoft | windows_11_23h2 | < 10.0.22631.6345 | 10.0.22631.6345 |
| microsoft | windows_11_24h2 | < 10.0.26100.7392 | 10.0.26100.7392 |
| microsoft | windows_11_25h2 | < 10.0.26200.7392 | 10.0.26200.7392 |
| microsoft | windows_11_version_22h3 | >= 10.0.22631.0 < 10.0.22631.6345 | 10.0.22631.6345 |
| microsoft | windows_11_version_23h2 | >= 10.0.22631.0 < 10.0.22631.6345 | 10.0.22631.6345 |
| microsoft | windows_11_version_24h2 | >= 10.0.26100.0 < 10.0.26100.7462 | 10.0.26100.7462 |
| microsoft | windows_11_version_25h2 | >= 10.0.26200.0 < 10.0.26200.7462 | 10.0.26200.7462 |
| microsoft | windows_server_2012 | — | — |
| microsoft | windows_server_2012_r2 | >= 6.3.9600.0 < 6.3.9600.22920 | 6.3.9600.22920 |
| microsoft | windows_server_2016 | < 10.0.14393.8688 | 10.0.14393.8688 |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < 10.0.14393.8688 | 10.0.14393.8688 |
| microsoft | windows_server_2019 | < 10.0.17763.8146 | 10.0.17763.8146 |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < 10.0.17763.8146 | 10.0.17763.8146 |
| microsoft | windows_server_2022 | < 10.0.20348.4467 | 10.0.20348.4467 |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.4529 | 10.0.20348.4529 |
| microsoft | windows_server_2022_23h2 | < 10.0.25398.2025 | 10.0.25398.2025 |
| microsoft | windows_server_2025 | < 10.0.26100.7392 | 10.0.26100.7392 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
vendor_msrc5.3MEDIUM
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GHSA
GHSA-ccfp-87cw-c3rx: Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny service over a network
ghsa_unreviewed·2025-12-09
CVE-2025-62567 [MEDIUM] CWE-191 GHSA-ccfp-87cw-c3rx: Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny service over a network
Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny service over a network.
Microsoft
Windows Hyper-V Denial of Service Vulnerability
vendor_msrc·2025-12-09·CVSS 5.3
CVE-2025-62567 [MEDIUM] CWE-191 Windows Hyper-V Denial of Service Vulnerability
Windows Hyper-V Denial of Service Vulnerability
Description: Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny service over a network.
FAQ: According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to gather information specific to the environment and take additional actions prior to exploitation to prepare the target environment.
Windows Hyper-V: Windows Hyper-V
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Denial of Service
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Unlikely
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5071544
Refe
No detection rules found.
No public exploits indexed.
Bleepingcomputer
Microsoft December 2025 Patch Tuesday fixes 3 zero-days, 57 flaws
blogs_bleepingcomputer·2025-12-09·CVSS 7.8
[HIGH] Microsoft December 2025 Patch Tuesday fixes 3 zero-days, 57 flaws
## Microsoft December 2025 Patch Tuesday fixes 3 zero-days, 57 flaws
## Lawrence Abrams
28 Elevation of Privilege Vulnerabilities
19 Remote Code Execution Vulnerabilities
4 Information Disclosure Vulnerabilities
3 Denial of Service Vulnerabilities
2 Spoofing Vulnerabilities
When BleepingComputer reports on Patch Tuesday security updates, we only count those released by Microsoft today. Therefore, the number of flaws does not include Microsoft Edge (15 flaws) and Mariner vulnerabilities fixed earlier this month.
To learn more about the non-security updates released today, you can review our dedicated articles on the Windows 11 KB5072033 & KB5071417 cumulative updates .
If you're facing delays, blind spots, or prioritization issues with Patch Tuesday updates, our recent webinar with
Wiz
CVE-2025-62567 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 5.3
CVE-2025-62567 [MEDIUM] CVE-2025-62567 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2025-62567 :
vulnerability analysis and mitigation
Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny service over a network.
Source : NVD
## 5.3
Score
Published December 9, 2025
Severity MEDIUM
CNA Score 5.3
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 26.3
Exploitation Probability (EPSS) 0.1
Sources
NVD
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2025-12-09
Published