SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2024-38094

Microsoft SharePoint Deserialization Vulnerability

KEVHIGH 7.2EPSS 50.9%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 12 November 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Microsoft SharePoint Remote Code Execution Vulnerability

CVSS 3.1
7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
50.89% probability · 99th percentile
CISA KEV
Listed 22 October 2024 · due 12 November 2024 · used in ransomware campaigns
Weakness
CWE-502
Affected
microsoft/sharepoint server
Source
secure@microsoft.com

CISA notes

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38094 ; https://nvd.nist.gov/vuln/detail/CVE-2024-38094

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