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CVE-2026-122986 Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability

7.8 highEPSS 0.2%

High (7.8) in microsoft kernel-mshv-6.6.137.mshv2-2.azl3.x86 64. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.

On this page
Improper privilege management in Microsoft Azure Kubernetes Service allows an authorized attacker to elevate privileges locally.

Severity

CVSS 3.1

7.8 high
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.2% estimated probability of exploitation activity in the next 30 days; 15th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: none · Automatable: no · Technical impact: total, assessed 2026-11-11. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE
CWE-269 Improper Privilege Management
OWASP Top 10
A06:2025 Insecure Design
Published
Modified
Assigned by
microsoft (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
Microsoft kernel-mshv-6.6.137.mshv2-2.azl3.x86_64from 1.0.0 before kernel-mshv-6.6.18.34.mshv3-2.azl3.x86_64

Attack patterns (CAPEC)

  • CAPEC-58 Restful Privilege Elevation Likelihood: High · Severity: High
  • CAPEC-122 Privilege Abuse Likelihood: High · Severity: Medium
  • CAPEC-233 Privilege Escalation

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

Check your stackJSON