Summary
Impact: Remote Code Execution. Microsoft rating: Critical. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
How could an attacker exploit the vulnerability?
An attacker could exploit the vulnerability by sending a specially crafted malicious DHCP discovery request to the iSCSI Discovery Service on 32-bit machines. An attacker who successfully exploited the vulnerability could then gain the ability to execute code on the target system.
Security updates
10.0.17763.4010 — https://support.microsoft.com/help/5022840
10.0.19042.2604 — https://support.microsoft.com/help/5022834
10.0.10240.19747 — https://support.microsoft.com/help/5022858
10.0.14393.5717 — https://support.microsoft.com/help/5022838
6.0.6003.21915 — https://support.microsoft.com/help/5022890
6.0.6003.21915 — https://support.microsoft.com/help/5022893
Vulnerabilities 1
-
Critical 9.8
Windows iSCSI Discovery Service Remote Code Execution Vulnerability
Windows iSCSI Discovery Service Remote Code Execution Vulnerability
Revision history
-
#1
Information published.
References
-
CVE-2023-21803 Windows iSCSI Discovery Service Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21803
-
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
-
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
-
Common Vulnerability Scoring System
https://www.first.org/cvss