What is the CVSS score of CVE-2026-26148?

CVE-2026-26148 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Azure Ad Ssh Login Extension For Linux are affected by CVE-2026-26148?

A high-severity vulnerability in Azure Entra ID (CVE-2026-26148) enables unauthorized attackers to escalate privileges on local systems through manipulation of trusted variables.. A patch is available.

How to fix or mitigate CVE-2026-26148?

Within 24 hours: Inventory all systems using Azure Entra ID and assess which handle sensitive workloads; enable enhanced logging for privilege escalation attempts. Within 7 days: Implement network segmentation to restrict lateral movement; enforce multi-factor authentication for all privileged accounts; review recent access logs for suspicious activity. Within 30 days: Deploy endpoint detection and response (EDR) solutions; conduct security assessment of Entra ID configurations; establish monitoring for variable initialization anomalies; prepare emergency patching procedure for when vendor releases fix.

Azure Ad Ssh Login Extension For Linux CVE-2026-26148

HIGH

External Initialization of Trusted Variables or Data Stores (CWE-454)

2026-03-10 secure@microsoft.com

Authentication Bypass Microsoft Azure Ad Ssh Login Extension For Linux

8.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.1 HIGH

AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Mar 10, 2026 - 18:18 nvd

HIGH 8.1

DescriptionCVE.org

External initialization of trusted variables or data stores in Azure Entra ID allows an unauthorized attacker to elevate privileges locally.

AnalysisAI

Local privilege escalation in Azure Entra ID SSH Login Extension for Linux stems from improper initialization of trusted variables, enabling unauthenticated attackers on affected systems to gain elevated privileges. This high-severity vulnerability (CVSS 8.1) requires local access but can compromise system confidentiality, integrity, and availability across trust boundaries. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Access local system

Delivery

Exploit external variable initialization

Exploit

Manipulate trusted data store

Execution

Escalate privileges

Impact

Access sensitive Azure Entra ID resources

Access

Access local system

Delivery

Exploit external variable initialization

Exploit

Manipulate trusted data store

Execution

Escalate privileges

Impact

Access sensitive Azure Entra ID resources

Vulnerability AssessmentAI

Exploitation	Local system access required. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 8.1 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker without authentication 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 systems using Azure Entra ID and assess which handle sensitive workloads; enable enhanced logging for privilege escalation attempts. …

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