CVE-2026-70009
CVE-2026-70009 is a critical-severity vulnerability in Microsoft Azure Arc with a CVSS 3.x base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Critical (CVSS 3.x base score 9.3)
- EPSS exploit prediction: 1% (43rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Microsoft Azure Arc
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-70009?
- Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
- How severe is CVE-2026-70009?
- CVE-2026-70009 has a CVSS 3.x base score of 9.3, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.
- Is CVE-2026-70009 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-70009?
- CVE-2026-70009 affects Microsoft Azure Arc. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-70009?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2026-70009 published?
- CVE-2026-70009 was published on 2026-09-17 and last updated on 2026-09-25.
References
Affected products (1)
- cpe:2.3:a:microsoft:azure_arc:-:*:*:*:*:*:*:*
More vulnerabilities in Microsoft Azure Arc
- CVE-2026-69399 — Critical (CVSS 10.0): Azure Arc Elevation of Privilege Vulnerability
- CVE-2026-69555 — Critical (CVSS 10.0): Incorrect authorization in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-24302 — High (CVSS 8.6): Improper access control in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
- CVE-2022-38007 — High (CVSS 7.8): Azure Guest Configuration and Azure Arc-enabled servers Elevation of Privilege Vulnerability
- CVE-2025-26627 — High (CVSS 7.0): Improper neutralization of special elements used in a command ('command injection') in Azure Arc allows an authorized…
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