SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2023-29360

Microsoft Streaming Service Untrusted Pointer Dereference Vulnerability

KEVHIGH 8.4EPSS 22.1%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 21 March 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Microsoft Streaming Service Elevation of Privilege Vulnerability

CVSS 3.1
8.4 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
22.13% probability · 98th percentile
CISA KEV
Listed 29 February 2024 · due 21 March 2024
Weakness
CWE-822
Affected
microsoft/windows 10 1607 · microsoft/windows 10 1809 · microsoft/windows 10 21h2 · microsoft/windows 10 22h2 · microsoft/windows 11 21h2 · microsoft/windows 11 22h2 · microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022
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-2023-29360 ;https://nvd.nist.gov/vuln/detail/CVE-2023-29360

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