CVE-2021-43239: microsoft windows_10
CVSS: 7.8v3.1HighModified
Published 15-12-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-43239 is a high (CVSS 7.8) vulnerability in microsoft windows_10. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 45.3% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.56%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 15-12-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Windows Recovery Environment Agent Elevation of Privilege Vulnerability
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSources2 sources · 7.1–7.8
- CVE.orgCNA7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:CDiffers
Medium 4.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.56%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
+0.01 pp
From 0.54% on 19-09-2026
19-09-202619-10-2026
EPSS score0.56%
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
Microsoft12 products
- windows_1020h2 | 21h1 | 21h2 | 2004
- windows 10 version 2004≥ 10.0.0, < 10.0.19041.1415
- windows 10 version 20h2≥ 10.0.0, < 10.0.19042.1415
- windows 10 version 21h1≥ 10.0.0, < 10.0.19043.1415
- windows 10 version 21h2≥ 10.0.0, < 10.0.19044.1415
1 vendor · 12 products
References
1 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43239X Refsource MISCPatchVendor Advisory