Vulnerability identifier: #VU72209
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Windows
Operating systems & Components /
Operating system
Windows Server
Operating systems & Components /
Operating system
Vendor: 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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Windows: 10 1809 10.0.17763.1, 10 20H2 10.0.19042.572, 10 1607 10.0.14393.10, 10 22H2 10.0.19045.2130, 10 21H2 10.0.19044.1288
Windows Server: 2008 - 2008 SP2
External links
http://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21803
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.