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ExploitedIn CISA KEVFix available

CVE-2020-0638

Exploitation confirmed. First attested on 2022-05-23 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2020-01-14
  • WeaknessCWE-59

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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'.

Timeline

dates in UTC
  1. 2020-01-1423:15CVE publishedNVD
  2. 2022-05-23Added to the CISA KEV catalogCISA KEV
  3. 2022-05-23Listed as exploited by GCVEGCVE
  4. 2022-05-23Exploitation first reportedCISA KEV
  5. 2025-02-0715:20SSVC exploitation set to activeCISA-ADP

Versions per branch

NVD
Microsoft windows 10 1709
BranchAffectedFixed in
—all versionsno fix published
Microsoft windows 10 1803
BranchAffectedFixed in
—all versionsno fix published
Microsoft windows 10 1809
BranchAffectedFixed in
—all versionsno fix published

6 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA10 products

As microsoft, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Microsoft Windows
    Affected
    • = 10 Version 1709 for 32-bit Systemsno fix stated
    • = 10 Version 1803 for 32-bit Systemsno fix stated
    • = 10 Version 1809 for ARM64-based Systemsno fix stated
    • = 10 Version 1803 for x64-based Systemsno fix stated
    • = 10 Version 1709 for ARM64-based Systemsno fix stated
    • = 10 Version 1709 for x64-based Systemsno fix stated
    • = 10 Version 1803 for ARM64-based Systemsno fix stated
    • = 10 Version 1809 for 32-bit Systemsno fix stated

    1 more version line in the CVE record.

  • Microsoft Windows 10 Version 1903 for ARM64-based Systems
  • Microsoft Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Windows 10 Version 1903 for x64-based Systems
  • Microsoft Windows Server
    Affected
    • = 2019no fix stated
    • = 2019 (Core installation)no fix stated
    • = version 1803 (Core Installation)no fix stated
  • Microsoft Windows Server, version 1903 (Server Core installation)

4 more products in the CVE record.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2020-01-14

Fix

  1. CISA’s required action: Apply updates per vendor instructions.due 2022-06-13

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2022-05-23
Patch Due Date
2022-06-13
Ransomware Use
Known
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2020-01-14
Last Modified
2026-08-12
NVD status
Analyzed
GitHub Advisory
GHSA-53p9-m4mr-wp8x

Frequently asked questions

What is CVE-2020-0638?

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'.

Is CVE-2020-0638 actively exploited?

Yes. CVE-2020-0638 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-06-13.

What is the CVSS score for CVE-2020-0638?

CVE-2020-0638 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record