CVE-2020-0638: Microsoft Update Notification Manager Privilege Escalation Vulnerability
CVE-2020-0638 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2022-05-23
An elevation of privilege vulnerability exists in the Microsoft Update Notification Manager due to improper handling of files. An attacker who has already gained execution on a victim system could exploit this to elevate their privileges.
Yes. CVE-2020-0638 is known to be exploited in the wild, first recorded on 23 May 2022. Treat it as urgent.
How severe is CVE-2020-0638?
Critical severity, with a CVSS score of 7.8, published 23 May 2022.
Which products and versions are affected?
Microsoft Windows 10 1709, 1803, 1809, 1903, 1909; Microsoft Windows Server 2016 1803, 1903, 1909; Microsoft Windows Server 2019 -; Microsoft Windows Server 1803, 1903, 1909.
Is there a fix for CVE-2020-0638?
A patch was published on 2020-01-14: Microsoft advisory and patch released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2020-0638 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2020-0638?
Check whether you run Microsoft Update Notification Manager. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Microsoft Windows 10 1709, 1803, 1809, 1903, 1909
Microsoft Windows Server 2016 1803, 1903, 1909
Microsoft Windows Server 2019 -
Microsoft Windows Server 1803, 1903, 1909
Timeline
2020-01-14: disclosed: NVD Published Date
2020-01-14: patched: Microsoft advisory and patch released
2022-05-23: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
2022-05-23: exploited: Reported as exploited in the wild per CISA KEV entry