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Windows Server 2019 CVE-2026-25165

HIGH
NULL Pointer Dereference (CWE-476)
2026-03-10 secure@microsoft.com
7.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Mar 10, 2026 - 18:18 nvd
HIGH 7.8

DescriptionCVE.org

Null pointer dereference in Windows Performance Counters allows an authorized attacker to elevate privileges locally.

AnalysisAI

Privilege escalation in Windows Performance Counters via null pointer dereference affects Windows Server 2019 and Windows 11 systems, enabling authenticated local attackers to gain elevated privileges. The vulnerability impacts systems where users have standard account access, allowing them to escalate to higher privilege levels on affected machines. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain local user account credentials
Exploit
Access Windows Performance Counters API
Execution
Trigger null pointer dereference in counter processing
Impact
Execute arbitrary code with SYSTEM privileges

Vulnerability AssessmentAI

Exploitation Windows Performance Counters subsystem must be enabled. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 7.8 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker could exploit this vulnerability to compromise the affected system.
Remediation Monitor vendor advisories for a patch. Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Inventory all Windows systems using Performance Counters and assess user access controls; identify high-risk environments (critical servers, data centers). …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-25165 vulnerability details – vuln.today

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