Exploited· due 2022-06-137.8highHighused in ransomware
CVE-2020-0638
Microsoft Windows 10 1709
An elevation of privilege vulnerability exists in the way the Update Notification Manager handles files.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Update Notification Manager Elevation of Privilege Vulnerability'.
Exploitation status
- CISA has confirmed this is being exploited in the wild. That is an observation of real attacks, not a prediction.
- It is known to have been used in ransomware campaigns.
- US federal civilian agencies are required to remediate it by 2022-06-13. That deadline does not bind private companies, but it is a reasonable benchmark for how urgently CISA views it.
- A vendor advisory or patch reference has been published.
Required action
Apply updates per vendor instructions.
CISA’s wording, unedited.
What the metrics mean
- It is requires local access to the machine.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, an ordinary user account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 7.8 (v3.1)
- Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness
- CWE-59
- Assigned by
- secure@microsoft.com
Dates
- Published
- 2020-01-14
- Last modified
- 2026-08-12
- Added to KEV
- 2022-05-23
- Remediation due
- 2022-06-13
- Sources
- CISA KEV, NVD
Affected products
- Microsoft Windows 10 1709all versions
- Microsoft Windows 10 1803all versions
- Microsoft Windows 10 1809all versions
- Microsoft Windows 10 1903all versions
- Microsoft Windows 10 1909all versions
- Microsoft Windows Server 1803all versions
- Microsoft Windows Server 1903all versions
- Microsoft Windows Server 1909all versions
- Microsoft Windows Server 2019all versions
As listed in the NVD configuration data. Not a statement about your estate.