CVE-2021-42277: microsoft microsoft visual studio 2015 update 3 Improper Privilege Management
CVSS: 5.5v3.1MediumModified
Published 10-11-2021Last modified 19-08-2026
Vulnerability summary
CVE-2021-42277 is a medium (CVSS 5.5) Improper Privilege Management vulnerability in microsoft microsoft visual studio 2015 update 3. EPSS estimates a 0.87% chance of exploitation in the next 30 days, higher than 58% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.87%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 10-11-2021PublishedVulnerability first disclosed.
- 19-08-2026Last modifiedVulnerability information updated.
Description
Diagnostics Hub Standard Collector Elevation of Privilege Vulnerability
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 5.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Medium 4.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.87%
Chance of exploitation in the next 30 days
Percentile
58%
Versus all other CVEs
30-day change
+0.01 pp
From 0.86% on 19-09-2026
19-09-202619-10-2026
EPSS score0.87%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft25 products
- microsoft visual studio 2015 update 3≥ 14.0.0, < 27550.00
- microsoft visual studio 2017 version 15.9 (includes 15.0 - 15.8)≥ 15.9.0, < 15.9.41
- microsoft visual studio 2019 version 16.11 (includes 16.0 - 16.10)≥ 16.11.0, < 16.11.6
- microsoft visual studio 2019 version 16.7 (includes 16.0 – 16.6)≥ 16.0.0, < 16.7.21
- microsoft visual studio 2019 version 16.9 (includes 16.0 - 16.8)≥ 15.0.0, < 16.9.13
1 vendor · 25 products
References
3 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42277X Refsource MISCX TransferredPatchVendor Advisory