CVE-2019-0604VulnerabilityPublished 11/03/2021Updated 10/24/2026
CVE-2019-0604: Microsoft SharePoint Remote Code Execution Vulnerability
Affects Microsoft SharePointSource CISA KEV
Severity
HighNo CVSS score published yet
- Exploitation
Actively exploited – in CISA KEV since 11/03/2021
- KEV deadline
- 05/03/2022
- Ransomware
- Used in ransomware campaigns
- EPSS
- 99.9% chance of exploitation in 30 days – higher than 99% of CVEs
What to do
CISA required action
Apply updates per vendor instructions.
Description
CVE-2019-0604 is a remote code execution vulnerability in Microsoft SharePoint where the application fails to properly validate the source markup of an application package. Successful exploitation allows an attacker to execute arbitrary code within the context of the SharePoint application pool and server farm account. This vulnerability has been exploited in the wild and is associated with known ransomware campaigns.