CVE-2020-0638
Confirmed PUBLISHEDAn elevation of privilege vulnerability exists in the way the Update Notification Manager handles files.To exploit this vulnerability, an attacker...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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'.
- CVE Published
- Jan 14, 2020
- Exploitation Reported
- May 23, 2022
- CVSS
- 7.8 High
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Microsoft |
Windows
|
10 Version 1709 for 32-bit Systems |
Affected |
| Microsoft |
Windows
|
10 Version 1803 for 32-bit Systems |
Affected |
| Microsoft |
Windows
|
10 Version 1809 for ARM64-based Systems |
Affected |
| Microsoft |
Windows
|
10 Version 1803 for x64-based Systems |
Affected |
| Microsoft |
Windows
|
10 Version 1709 for ARM64-based Systems |
Affected |
| Microsoft |
Windows
|
10 Version 1709 for x64-based Systems |
Affected |
| Microsoft |
Windows
|
10 Version 1803 for ARM64-based Systems |
Affected |
| Microsoft |
Windows
|
10 Version 1809 for 32-bit Systems |
Affected |
| Microsoft |
Windows
|
10 Version 1809 for x64-based Systems |
Affected |
| Microsoft |
Windows 10 Version 1903 for ARM64-based Systems
|
unspecified |
Affected |
| Microsoft |
Windows 10 Version 1903 for 32-bit Systems
|
unspecified |
Affected |
| Microsoft |
Windows 10 Version 1903 for x64-based Systems
|
unspecified |
Affected |
| Microsoft |
Windows Server
|
2019 |
Affected |
| Microsoft |
Windows Server
|
2019 (Core installation) |
Affected |
| Microsoft |
Windows Server
|
version 1803 (Core Installation) |
Affected |
| Microsoft |
Windows Server, version 1903 (Server Core installation)
|
unspecified |
Affected |
| Microsoft |
Windows 10 Version 1909 for 32-bit Systems
|
unspecified |
Affected |
| Microsoft |
Windows 10 Version 1909 for x64-based Systems
|
unspecified |
Affected |
| Microsoft |
Windows Server, version 1909 (Server Core installation)
|
unspecified |
Affected |
| Microsoft |
Windows 10 Version 1909 for ARM64-based Systems
|
unspecified |
Affected |
CVE References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0638 portal.msrc.microsoft.com · CVE Record https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CV...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2022-05-23 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:L/Au:N/C:P/I:P/A:P
Exploitation Status
Exploited in the wild
Recorded 2022-05-23 00:00:00 UTC · CISA
Used in malware
Recorded 2022-05-23 00:00:00 UTC · CISA
Weaknesses (CWE)
-
Improper Link Resolution Before File Access ('Link Following')
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
00:00 UTC about 4 years ago00:00 UTC · about 4 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
00:00 UTC about 4 years ago00:00 UTC · about 4 years ago
First public exploitation report
Exploit observed in malware
-
23:11 UTC over 6 years ago23:11 UTC · over 6 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC over 6 years ago00:00 UTC · over 6 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2020-0638
{
"cve_id": "CVE-2020-0638",
"title": "An elevation of privilege vulnerability exists in the way the Update Notifica...",
"affected_vendor": "Microsoft",
"affected_product": "Windows, Windows 10 Version 1903 for ARM64-based Systems, Windows 10 Version 1903 for 32-bit Systems, Windows 10 Version 1903 for x64-based Systems, Windows Server, Windows Server, version 1903 (Server Core installation), Windows 10 Version 1909 for 32-bit Systems, Windows 10 Version 1909 for x64-based Systems, Windows Server, version 1909 (Server Core installation), Windows 10 Version 1909 for ARM64-based Systems",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 7.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}