CVE-2026-62895: CWE-942: Permissive Cross-domain Policy with Untrusted Domains in Microsoft Azure Arc SQL Server Extension
Description
CVE-2026-62895 is a high-severity vulnerability in Microsoft Azure Arc SQL Server Extension where a permissive cross-domain policy allows untrusted domains. This flaw enables unauthorized attackers to elevate privileges over a network. The vulnerability affects versions from 1.0.0.0 up to but not including 1.1.3518.465. An official fix is available from Microsoft, and as this is a cloud service, Microsoft manages the remediation. No known exploits are currently reported in the wild.
CVSS v3.1
Score 8.8high
Affected software
Microsoft
Azure Arc SQL Server Extension
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-62895) involves a permissive cross-domain policy configuration in the Azure Arc SQL Server Extension that includes untrusted domains. Such a configuration can be exploited by unauthorized attackers to elevate their privileges remotely. The issue is tracked under CWE-942 and has a CVSS v3.1 score of 8.8, indicating high impact on confidentiality, integrity, and availability. The affected versions are >=1.0.0.0 and <1.1.3518.465. Microsoft has issued an official fix and manages patching for this cloud-hosted service.
Potential Impact
Successful exploitation allows an attacker to elevate privileges over the network, potentially leading to full compromise of the affected Azure Arc SQL Server Extension environment. The impact includes high confidentiality, integrity, and availability loss as indicated by the CVSS score.
Mitigation Recommendations
An official fix is available from Microsoft. Since Azure Arc SQL Server Extension is a cloud service, Microsoft manages the remediation and patch deployment. Users should verify that their environment is updated to version 1.1.3518.465 or later as per Microsoft's advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62895.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:25:21.034Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62895","vendor":"Microsoft"}]
Threat ID: 6aa044c7acd9273b49fa7afb
Added to database: 09/08/2026, 17:24:23 UTC
Last enriched: 10/16/2026, 20:49:32 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 54
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