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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2019-0604

Microsoft SharePoint Remote Code Execution Vulnerability

KEVCRITICAL 9.8EPSS 99.9%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package, aka 'Microsoft SharePoint Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-0594.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
99.91% probability · 100th percentile
CISA KEV
Listed 3 November 2021 · due 3 May 2022 · used in ransomware campaigns
Weakness
CWE-20
Affected
microsoft/sharepoint enterprise server · microsoft/sharepoint foundation · microsoft/sharepoint server
Source
secure@microsoft.com

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2019-0604

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.