CVE-2026-83712: microsoft windows 10 version 1809 Out-of-bounds Write
CVSS: 7.8v3.1HighAwaiting analysis
Published 13-10-2026Last modified 21-10-2026
Vulnerability summary
CVE-2026-83712 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in microsoft windows 10 version 1809. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.4% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
0.32%
0%100%
Low · Change unavailableKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-10-2026PublishedVulnerability first disclosed.
- 21-10-2026Last modifiedVulnerability information updated.
Description
Out-of-bounds write in Windows NTFS allows an authorized attacker to execute code locally.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 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
EPSS trend
Probability
0.32%
Chance of exploitation in the next 30 days
Percentile
23%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
14-10-202621-10-2026
EPSS score0.32%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft13 products
- windows 10 version 1809≥ 10.0.17763.0, < 10.0.17763.9376
- windows 10 version 21h2≥ 10.0.19044.0, < 10.0.19044.7807
- windows 10 version 22h2≥ 10.0.19045.0, < 10.0.19045.7807
- windows 11 version 23h2≥ 10.0.22631.0, < 10.0.22631.7652
- windows 11 version 24h2≥ 10.0.26100.0, < 10.0.26100.9711
1 vendor · 13 products
