CVE-2021-43247: microsoft windows_10 Out-of-bounds Write
CVSS: 7.8v3.1HighModified
Published 15-12-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-43247 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in microsoft windows_10. EPSS estimates a 0.92% chance of exploitation in the next 30 days, higher than 59.7% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
0.92%
0%100%
Low · +0.02 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 TCP/IP Driver Elevation of Privilege Vulnerability
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
High 7.2Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
0.92%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
+0.02 pp
From 0.90% on 20-09-2026
20-09-202620-10-2026
EPSS score0.92%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft16 products
- windows_1020h2 | 21h1 | 21h2 | 1809 | 1909 | 2004
- windows 10 version 1809≥ 10.0.0, < 10.0.17763.2366
- windows 10 version 1909≥ 10.0.0, < 10.0.18363.1977
- windows 10 version 2004≥ 10.0.0, < 10.0.19041.1415
- windows 10 version 20h2≥ 10.0.0, < 10.0.19042.1415
1 vendor · 16 products
References
2 links
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43247X Refsource MISCPatchVendor Advisory