CVE-2021-40464: microsoft windows_10 Improper Privilege Management
CVSS: 8.0v3.1HighModified
Published 13-10-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-40464 is a high (CVSS 8.0) Improper Privilege Management vulnerability in microsoft windows_10. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 45% of scored vulnerabilities.
CVSS score
8.0/10
010
High · v3.1 (CVE.org)EPSS score
0.55%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-10-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Windows Nearby Sharing Elevation of Privilege Vulnerability
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.0Preferred score · CVE.org (CNA)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST8.0HighCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Medium 5.2Preferred score · NVD (NIST)
AV:A/AC:L/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.55%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
0.00 pp
From 0.55% on 20-09-2026
20-09-202620-10-2026
EPSS score0.55%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft15 products
- windows_1020h2 | 21h1 | 1809 | 1909 | 2004
- windows 10 version 1809≥ 10.0.0, < 10.0.17763.2237
- windows 10 version 1909≥ 10.0.0, < 10.0.18363.1854
- windows 10 version 2004≥ 10.0.0, < 10.0.19041.1288
- windows 10 version 20h2≥ 10.0.0, < 10.0.19042.1288
1 vendor · 15 products
References
1 links
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40464X Refsource MISCPatchVendor Advisory