Cross-Domain Policy Vulnerability in Azure Arc by Microsoft
CVE-2026-62895

8.8HIGH

Key Information:

Vendor

Microsoft
Status
Azure Arc Sql Server Extension
Vendor
CVE Published:
8 September 2026

What is CVE-2026-62895?

A permissive cross-domain policy flaw exists within Azure Arc, particularly affecting the Azure Arc SQL Server Extension. This vulnerability can be exploited by an unauthorized attacker to gain elevated privileges over a network, thus posing significant risks to data integrity and system security. Proper safeguards must be implemented to restrict access and mitigate the potential harmful impacts of this exposure.

Affected Version(s)

Azure Arc SQL Server Extension 1.0.0.0 < 1.1.3518.465

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.