CVE-2023-33129 Microsoft SharePoint Server Denial of Service Vulnerability
Attackers can cause a denial of service in Microsoft SharePoint Server, requiring administrators to apply vendor patches.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-33129?
CVE-2023-33129 is a medium-severity denial of service vulnerability in Microsoft Sharepoint Server, published on 13 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Microsoft SharePoint Server Denial of Service Vulnerability
Weakness: CWE-122
Which versions are affected by CVE-2023-33129?
It affects 1 product.
Products include Microsoft Sharepoint Server.
How do I fix CVE-2023-33129?
No fix has been published for CVE-2023-33129 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-33129 being exploited?
There is no known exploitation of CVE-2023-33129 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-r8w8-gcm5-47jw.