CVE-2021-1669 (GCVE-0-2021-1669)
Vulnerability from cvelistv5 – Published: 2021-01-12 19:42 – Updated: 2024-11-19 15:12
VLAI
EPSS
VEX
Title
Windows Remote Desktop Security Feature Bypass Vulnerability
Summary
Windows Remote Desktop Security Feature Bypass Vulnerability
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-19 15:11 UTC
CWE
- Security Feature Bypass
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisory |
| https://portal.msrc.microsoft.com/en-US/security-… | x_refsource_MISCx_transferred |
Impacted products
16 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 20H2 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_10_20H2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_20H2:*:*:*:*:*:*:arm64:* |
||
| Microsoft | Windows Server version 20H2 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_20H2:*:*:*:*:*:*:*:* |
||
| Microsoft | Windows 10 Version 1803 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1803:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1803:*:*:*:*:*:*:arm64:* |
||
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:arm64:* |
||
| Microsoft | Windows Server 2019 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* |
||
| Microsoft | Windows 10 Version 1909 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* |
||
| Microsoft | Windows Server, version 1909 (Server Core installation) |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_1909:*:*:*:*:*:*:*:* |
||
| Microsoft | Windows 10 Version 2004 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* |
||
| Microsoft | Windows Server version 2004 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:* |
||
| Microsoft | Windows 10 Version 1507 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:* |
||
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* |
||
| Microsoft | Windows Server 2016 |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* |
||
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.0 , < publication
(custom)
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* |
||
| Microsoft | Microsoft Remote Desktop for Mac |
Affected:
1.0.0 , < publication
(custom)
cpe:2.3:a:microsoft:remote_desktop:-:*:*:*:*:mac:*:* |
||
| Microsoft | Microsoft Remote Desktop for IoS |
Affected:
1.0.0 , < publication
(custom)
cpe:2.3:a:microsoft:remote_desktop:-:*:*:*:*:ios:*:* |
||
| Microsoft | Remote Desktop client for Windows Desktop |
Affected:
1.2.0.0 , < publication
(custom)
cpe:2.3:a:microsoft:remote_desktop:-:*:*:*:*:windows:*:* |
Date Public
2021-01-12 08:00
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{
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{
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{
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{
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{
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{
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{
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{
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{
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],
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},
{
"lang": "es",
"value": "Una Vulnerabilidad de Omisi\u00f3n de la Caracter\u00edstica de Seguridad de Windows Remote Desktop"
}
],
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"lastModified": "2025-07-07T18:15:34.883",
"metrics": {
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{
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},
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"impactScore": 5.9,
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"type": "Secondary"
},
{
"cvssData": {
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"availabilityImpact": "HIGH",
"baseScore": 8.8,
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"confidentialityImpact": "HIGH",
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"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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},
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"impactScore": 5.9,
"source": "nvd@nist.gov",
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}
]
},
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},
{
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}
],
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"vulnStatus": "Modified",
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],
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}
]
}
},
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"cve": "CVE-2021-1669",
"id": "CVE-2021-1669",
"initial_release_date": "2021-01-12T08:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
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"title": "Windows Remote Desktop Security Feature Bypass Vulnerability",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-1669.json",
"version": "3"
},
"vulnrichment": {
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{
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"product": "Windows 10 Version 1803",
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"product": "Windows Server 2019",
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"platforms": [
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"product": "Windows 10 Version 1909",
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],
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"product": "Windows 10 Version 2004",
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},
{
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],
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],
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},
{
"cpes": [
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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