#VU72209 Input validation error in Windows and Windows Server - CVE-2023-21803
Published: February 14, 2023
Vulnerability identifier: #VU72209
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2023-21803
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Windows
Windows Server
Windows
Windows Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a remote attacker to compromise the affected system
The vulnerability exists due to insufficient validation of user-supplied input within the Windows iSCSI Discovery Service. A remote attacker can send a specially crafted malicious DHCP discovery request to the iSCSI Discovery Services and execute arbitrary code on the system.
Note, only x86 or 32-bit based versions of Windows are affected by this vulnerability.
Remediation
Install updates from vendor's website.