CVE-2020-1356 Privilege escalation in Windows Server
An attacker can exploit improper file handling in the Windows iSCSI Target Service to elevate privileges on affected Windows Server systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-1356?
CVE-2020-1356 is a high-severity vulnerability in Microsoft Windows Server 2012, published on 14 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An elevation of privilege vulnerability exists when the Windows iSCSI Target Service improperly handles file operations, aka 'Windows iSCSI Target Service Elevation of Privilege Vulnerability'.
Which versions are affected by CVE-2020-1356?
It affects 3 products.
Products include Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019.
How do I fix CVE-2020-1356?
No fix has been published for CVE-2020-1356 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-1356 being exploited?
There is no known exploitation of CVE-2020-1356 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows Server 2012
- CVE-2025-59287 Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data
- CVE-2026-69595 Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
- CVE-2026-78445 Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
- CVE-2026-41089 Windows Netlogon Remote Code Execution Vulnerability
- CVE-2024-43639 Windows KDC Proxy Remote Code Execution Vulnerability
Sources
Also known as GHSA-3p9g-h722-84r2.