Microsoft SharePoint Server Remote Code Execution Vulnerability

cisa required action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

1. 2023-05-01 First public exploit (Metasploit exploit/windows/http/sharepoint_dynamic_proxy_generator_auth_bypass_rce)
2. 2023-05-09 Published
3. 2024-03-26 Added to CISA KEV
4. 2024-04-16 CISA patch deadline
5. 2024-05-01 CISA SSVC: exploitation active

Added

2 y ago (2024-03-26)

Patch by

2024-04-16 (2 y ago)

Ransomware

Known to be used in ransomware campaigns

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Vendor, product

Microsoft, SharePoint Server

CISA name

Microsoft SharePoint Server Code Injection Vulnerability

Exploitation

Active, exploited in the wild

Automatable

no

Technical impact

total

Assessed

2 y ago (2024-05-01)

84.97% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-08).

• Metasploit exploit/windows/http/sharepoint_dynamic_proxy_generator_auth_bypass_rce Sharepoint Dynamic Proxy Generator Unauth RCE metasploit exploit, excellent rank, 2023-05-01

• Microsoft Microsoft SharePoint Enterprise Server 2016
• Microsoft Microsoft SharePoint Server 2019
• Microsoft Microsoft SharePoint Server Subscription Edition

Weakness

• CWE-94 Improper Control of Generation of Code

• msrc.microsoft.com /update-guide/vulnerability/CVE-2023-24955

  vendor-advisory, patch

• cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-24955

  government-resource, us-government-resource

• CVE List CVE-2023-24955
• NVD CVE-2023-24955

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.