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VulnerabilityPublished Updated

CVE-2026-70009: Microsoft Azure ARC · Path Traversal

Affects Microsoft Azure ARCSource CVE Database V5

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Not known to be exploited · CVSS 9.3 Critical · patch available : patch Microsoft Azure ARC as a priority.

Data as of 1 Nov 2026, 22:58 UTC

CVSS 3.1 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (microsoft)CVSS 3.19.3
EPSS
0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N/E:U/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
MicrosoftAzure ARCAffected
  • =-
Fixed in–

AI-suggested

Microsoft has released an official fix for CVE-2026-70009 and manages remediation for Azure ARC as a cloud service. Users should ensure their Azure ARC instances are updated according to Microsoft's guidance available at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70009. No additional user action is required beyond applying the official fix.

Description

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

References

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