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TI-2023-08158 Aliases CVE-2023-21777GHSA-462g-m6hg-7643

Azure App Service on Azure Stack Hub Elevation of Privilege Vulnerability

Priority MEDIUM 40CWE-284Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.

Summary

Azure App Service on Azure Stack Hub Elevation of Privilege Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00348 28th percentileScored 2026-11-07
Fix Fixed Azure App Service on Azure Stack Hub (Microsoft): 98.0.1.703

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftAzure App Service on Azure Stack Hub98.0.0 to before 98.0.1.70398.0.1.703Patch availableCNA
  • Azure App Service on Azure Stack Hub VendorMicrosoft Affected 98.0.0 to before 98.0.1.703 Fixed in 98.0.1.703 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:azure_app_service_on_azure_stack:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:a:microsoft:azure_app_service_on_azure_stack:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

  • Fix · CNA Azure App Service on Azure Stack Hub (Microsoft) Fixed in 98.0.1.703

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Elevation of Privilege
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Azure App Service on Azure Stack HubFixed 98.0.1.703 · App Service Installer

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-21777
  2. 2026-10-03 Alias added: GHSA-462g-m6hg-7643

References

Patch 1

  • TI-2019-01084 An remote code execution vulnerability exists when Azure App Service/ Antares on Azure… CVSS 3.1CRITICAL 10.0
  • TI-2018-06249 Cross-site scripting in Microsoft Azure App CVSS 3.0MEDIUM 6.1
  • TI-2025-33666 Azure Stack Hub Information Disclosure Vulnerability CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences