CVE-2026-96864: microsoft windows 10 version 1607 Double Free
CVSS: 9.8v3.1CriticalAwaiting analysis
Published 13-10-2026Last modified 16-10-2026
Vulnerability summary
CVE-2026-96864 is a critical (CVSS 9.8) Double Free vulnerability in microsoft windows 10 version 1607. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 50% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
0.65%
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.
- 16-10-2026Last modifiedVulnerability information updated.
Description
Double free in Microsoft Failover Cluster Virtual Driver allows an unauthorized attacker to execute code over a network.
CVSS metrics
2 scores · 2 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.65%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
14-10-202618-10-2026
EPSS score0.65%
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 1607≥ 10.0.14393.0, < 10.0.14393.9612
- windows 10 version 1809≥ 10.0.17763.0, < 10.0.17763.9376
- windows_server_2012≥ 6.2.9200.0, < 6.2.9200.26434
- windows server 2012 r2≥ 6.3.9600.0, < 6.3.9600.23470
- windows server 2012 r2 (server core installation)≥ 6.3.9600.0, < 6.3.9600.23470
1 vendor · 13 products