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CVE-2026-70009Critical

Azure Arc Elevation of Privilege Vulnerability

MSRC advisory NVD CVE.org

Assessment

Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Arc allows an unauthorized attacker to elevate privileges over a network.

Severity
Critical
CVSS base score
9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N/E:U/RL:O/RC:C
Impact
Elevation of Privilege
EPSS, next 30 days
0.5%Higher than 42.8% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
Exploitability
Exploitation Less Likely
Publicly disclosed
No
Customer action
Not required (service-side fix)
Component
Azure Arc
Weakness
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Issued by
Microsoft
Published
17 Sep 2026 · September 2026
Last revised
17 Sep 2026

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

Azure
1 affected product
  • Azure ARC
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