CVE-2021-1669: microsoft microsoft remote desktop for ios
CVSS: 8.8v3.1HighModified
Published 12-01-2021Last modified 19-11-2024
Vulnerability summary
CVE-2021-1669 is a high (CVSS 8.8) vulnerability in microsoft microsoft remote desktop for ios. EPSS estimates a 3.20% chance of exploitation in the next 30 days, higher than 87.9% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
3.20%
0%100%
Low · +0.24 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 12-01-2021PublishedVulnerability first disclosed.
- 19-11-2024Last modifiedVulnerability information updated.
Description
Windows Remote Desktop Security Feature Bypass Vulnerability
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Medium 6.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
3.20%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
+0.24 pp
From 2.97% on 20-09-2026
20-09-202620-10-2026
EPSS score3.20%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Microsoft19 products
- microsoft remote desktop for ios≥ 1.0.0, < publication
- microsoft remote desktop for mac≥ 1.0.0, < publication
- remote_desktopna
- remote_desktop_clientna
- remote desktop client for windows desktop≥ 1.2.0.0, < publication
1 vendor · 19 products
References
2 links- msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1669Vendor Advisory
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1669X Refsource MISCX Transferred