Microsoft Windows

CVE-2025-62215: Microsoft Windows Race Condition Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 12 Nov 2025, 1 day after the CVE record was published.

How likely is exploitation in the next 30 days?

4.5%

EPSS score, percentile 91.4 of all scored records

How severe?

7.0 High

CVSS v3.1 base score, given by the CNA

What should I do?

CISA deadline 3 Dec 2025. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Advisories and patches (1)

Which versions are affected?

Affected

from 10.0.17763.0 to before 10.0.17763.8027
from 10.0.19044.0 to before 10.0.19044.6575
from 10.0.19045.0 to before 10.0.19045.6575
from 10.0.22631.0 to before 10.0.22631.6199
from 10.0.22631.0 to before 10.0.22631.6199
from 10.0.26100.0 to before 10.0.26100.7171

and 7 more in the table below

Versions by product

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

What to do

Required action, set by CISA

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA due date for this action: 3 December 2025.

Advisories and patches

Windows Kernel Elevation of Privilege Vulnerability (Vendor advisory, Patch)

Linked from CISA's catalog entry

Affected products and versions

As listed in the CVE record.

Microsoft Windows 10 Version 1809
Status	Versions
Affected	from 10.0.17763.0 to before 10.0.17763.8027

Microsoft Windows 10 Version 21H2
Status	Versions
Affected	from 10.0.19044.0 to before 10.0.19044.6575

Microsoft Windows 10 Version 22H2
Status	Versions
Affected	from 10.0.19045.0 to before 10.0.19045.6575

Microsoft Windows 11 version 22H3
Status	Versions
Affected	from 10.0.22631.0 to before 10.0.22631.6199

Microsoft Windows 11 Version 23H2
Status	Versions
Affected	from 10.0.22631.0 to before 10.0.22631.6199

Microsoft Windows 11 Version 24H2
Status	Versions
Affected	from 10.0.26100.0 to before 10.0.26100.7171

Microsoft Windows 11 Version 25H2
Status	Versions
Affected	from 10.0.26200.0 to before 10.0.26200.7171

Microsoft Windows Server 2019
Status	Versions
Affected	from 10.0.17763.0 to before 10.0.17763.8027

Microsoft Windows Server 2019 (Server Core installation)
Status	Versions
Affected	from 10.0.17763.0 to before 10.0.17763.8027

Microsoft Windows Server 2022
Status	Versions
Affected	from 10.0.20348.0 to before 10.0.20348.4405

Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
Status	Versions
Affected	from 10.0.25398.0 to before 10.0.25398.1965

Microsoft Windows Server 2025
Status	Versions
Affected	from 10.0.26100.0 to before 10.0.26100.7171

Microsoft Windows Server 2025 (Server Core installation)
Status	Versions
Affected	from 10.0.26100.0 to before 10.0.26100.7171

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

About this vulnerability

Microsoft Windows Kernel contains a race condition vulnerability that allows a local attacker with low-level privileges to escalate privileges. Successful exploitation of this vulnerability could enable the attacker to gain SYSTEM-level access.

Summary: CISA's KEV catalog, as of 28 Oct 2026.

CISA added CVE-2025-62215 to its Known Exploited Vulnerabilities (KEV) catalog on 12 Nov 2025.
CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
The due date CISA sets for the required action is 3 Dec 2025.
The CVE record was published on 11 Nov 2025, 1 day before it was added to KEV.
The CVE record carries a CVSS v3.1 base score of 7.0 (High), given by its CNA.
FIRST's EPSS model puts the probability of exploitation in the next 30 days at 4.5% (percentile 91.4), as of 28 Oct 2026.
CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.

Description

Windows Kernel Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Kernel allows an authorized attacker to elevate privileges locally.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

Weakness

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-415: Double Free

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.

Timeline

Date	Event
11 Nov 2025	CVE record published
12 Nov 2025	Added to CISA KEV
3 Dec 2025	CISA due date for the required action
26 Feb 2026	CVE record last updated

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