What is CVE-2026-42830?

CVE-2026-42830 is a medium-severity vulnerability in Microsoft Azure Monitor Agent, classified under Untrusted Search Path. CVSS score: 6.5/10. Published 2026-05-12.

How severe is CVE-2026-42830?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Microsoft Azure Monitor Agent

CVE-2026-42830

Untrusted search path in Azure Monitor Agent allows an authorized attacker to elevate privileges locally.

Published 2026-05-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.006 (48.8th percentile), scored 2026-09-27.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.002

Affected products

Microsoft Azure Monitor Agent
Microsoft Azure Monitor Agent Metrics Extension — versions 1.0.0

Weakness classification (CWE)

CWE-426 — Untrusted Search Path

References

Azure Monitor Agent Metrics Extension Elevation of Privilege Vulnerability (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-42830?: CVE-2026-42830 is a medium-severity vulnerability in Microsoft Azure Monitor Agent, classified under Untrusted Search Path. CVSS score: 6.5/10. Published 2026-05-12.
How severe is CVE-2026-42830?: Medium severity. CVSS v3 base score is 6.5 out of 10.