CVE-2025-21348 Microsoft SharePoint Server Remote Code Execution Vulnerability
Attackers can exploit an authentication bypass in Microsoft SharePoint Server to achieve remote code execution and privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-21348?
CVE-2025-21348 is a high-severity authentication bypass vulnerability in Microsoft Sharepoint Server, published on 14 Jan 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Microsoft SharePoint Server Remote Code Execution Vulnerability
Weakness: CWE-285
Which versions are affected by CVE-2025-21348?
It affects 1 product.
Products include Microsoft Sharepoint Server.
How do I fix CVE-2025-21348?
No fix has been published for CVE-2025-21348 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-21348 being exploited?
There is no known exploitation of CVE-2025-21348 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Sharepoint Server
- CVE-2026-50522 Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
- CVE-2026-58644 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2026-20963 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2025-53770 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2023-29357 Microsoft SharePoint Server Privilege Escalation
Sources
Also known as GHSA-4hgf-cx4c-6c53.