CVE-2026-96909: Windows BitLocker Remote Code Execution Vulnerability
- Is it exploited?
Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.
- How likely is exploitation in the next 30 days?
- 1%
Up from 0.9% on .
EPSS score, percentile 62.4 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 9.8 Critical
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
- Which versions are affected?
Affected
- from 10.0.22631.0 to before 10.0.22631.7652
- from 10.0.22631.0 to before 10.0.22631.7652
- from 10.0.26100.0 to before 10.0.26100.9711
- from 10.0.26200.0 to before 10.0.26200.9711
- from 10.0.28000.0 to before 10.0.28000.3231
- from 10.0.26300.0 to before 10.0.26300.9711
and 3 more in the table below
Source: CISA KEV 2026.10.29, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
What to do
Advisories and patches
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | from 10.0.22631.0 to before 10.0.22631.7652 |
| Status | Versions |
|---|---|
| Affected | from 10.0.22631.0 to before 10.0.22631.7652 |
| Status | Versions |
|---|---|
| Affected | from 10.0.26100.0 to before 10.0.26100.9711 |
| Status | Versions |
|---|---|
| Affected | from 10.0.26200.0 to before 10.0.26200.9711 |
| Status | Versions |
|---|---|
| Affected | from 10.0.28000.0 to before 10.0.28000.3231 |
| Status | Versions |
|---|---|
| Affected | from 10.0.26300.0 to before 10.0.26300.9711 |
| Status | Versions |
|---|---|
| Affected | from 10.0.20348.0 to before 10.0.20348.5761 |
| Status | Versions |
|---|---|
| Affected | from 10.0.26100.0 to before 10.0.26100.33650 |
| Status | Versions |
|---|---|
| Affected | from 10.0.26100.0 to before 10.0.26100.33650 |
Source: CVE List, as of . About the data.
About this vulnerability
Heap-based buffer overflow in Windows BitLocker allows an unauthorized attacker to execute code over a network.
Summary: CVE record, as of .
- CISA has not added CVE-2026-96909 to its Known Exploited Vulnerabilities (KEV) catalog, as of 29 Oct 2026.
- The CVE record was published on 13 Oct 2026.
- The CVE record carries a CVSS v3.1 base score of 9.8 (Critical), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 1% (percentile 62.4), as of 29 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.
- CISA's SSVC assessment in the CVE record: exploitation none, automatable yes, technical impact total.
Source: CISA KEV 2026.10.29, as of ; CVE List, as of ; FIRST EPSS, as of . About the data.
Description
Windows BitLocker Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows BitLocker allows an unauthorized attacker to execute code over a network.
Source: CVE List, as of . About the data.
Weakness
CWE-122
- CWE-122: Heap-based Buffer Overflow
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
Known exploited Microsoft vulnerabilities
- CVE-2026-96951: Microsoft Windows Command Injection Vulnerability
- CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability
- CVE-2026-81963: Microsoft Windows Link Following Vulnerability
- CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability
- CVE-2019-1068: Microsoft SQL Server Remote Code Execution Vulnerability