SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2018-0824

Microsoft COM for Windows Deserialization of Untrusted Data Vulnerability

KEVHIGH 8.8EPSS 73.2%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 26 August 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

A remote code execution vulnerability exists in "Microsoft COM for Windows" when it fails to properly handle serialized objects, aka "Microsoft COM for Windows Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
73.19% probability · 99th percentile
CISA KEV
Listed 5 August 2024 · due 26 August 2024
Weakness
CWE-502
Affected
microsoft/windows 10 1507 · microsoft/windows 10 1607 · microsoft/windows 10 1703 · microsoft/windows 10 1709 · microsoft/windows 10 1803 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 1709 · microsoft/windows server 1803 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016
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/en-US/advisory/CVE-2018-0824; https://nvd.nist.gov/vuln/detail/CVE-2018-0824

References

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