Summary
Impact: Remote Code Execution. Microsoft rating: Critical. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?
The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally.
For example, when the score indicates that the Attack Vector is Local and User Interaction is Required, this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and open a specially crafted file from a website which leads to a local attack on their computer.
How could an attacker exploit this vulnerability?
To exploit this vulnerability, an attacker could run a specially crafted application on a Hyper-V guest that could cause the Hyper-V host operating system to execute arbitrary code.
According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?
Successful exploitation of this vulnerability could allow a Hyper-V guest to affect the functionality of the Hyper-V host.
Security updates
10.0.22621.1413 — https://support.microsoft.com/help/5023706
10.0.19043.1645 — https://support.microsoft.com/help/5012599
10.0.20348.643 — https://support.microsoft.com/help/5012604
10.0.22000.613 — https://support.microsoft.com/help/5012592
Vulnerabilities 1
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High 8.8
Windows Hyper-V Remote Code Execution Vulnerability
Windows Hyper-V Remote Code Execution Vulnerability
Revision history
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#2
In the Security Updates table, added Windows 11 Version 22H2 for x64-based Systems as this version of Windows is affected by this vulnerability. Microsoft strongly recommends that customers install the March 2023 updates to be fully protected from this vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action.
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#1
Information published.
References
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CVE-2022-23257 Windows Hyper-V Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-23257
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss