CVE-2026-48567: CWE-290: Authentication Bypass by Spoofing in Microsoft Azure HorizonDB
CVE-2026-48567 is a critical authentication bypass vulnerability in Microsoft Azure HorizonDB that allows an unauthorized attacker to elevate privileges over a network by spoofing authentication. The vulnerability has a CVSS score of 10, indicating a severe risk with high impact on integrity and availability. Microsoft has issued an official fix for this cloud-hosted service, and remediation is managed by the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-48567) in Azure HorizonDB involves an authentication bypass via spoofing, categorized under CWE-290. It enables attackers with network access to elevate privileges without proper authentication. The CVSS 3.1 vector indicates the attack requires no privileges or user interaction, has network attack vector, low attack complexity, and results in high impact on integrity and availability with scope change. Microsoft has published an official fix and manages remediation for this cloud service.
Potential Impact
Successful exploitation allows an attacker to bypass authentication controls and elevate privileges within Azure HorizonDB, potentially compromising data integrity and availability. The vulnerability does not affect confidentiality but can lead to significant operational disruption or unauthorized actions within the service.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability and manages remediation for Azure HorizonDB as a cloud service. Users should ensure their Azure HorizonDB instances are updated according to Microsoft's guidance at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48567. No additional user action is required beyond applying the official fix.
CVE-2026-48567: CWE-290: Authentication Bypass by Spoofing in Microsoft Azure HorizonDB
Description
CVE-2026-48567 is a critical authentication bypass vulnerability in Microsoft Azure HorizonDB that allows an unauthorized attacker to elevate privileges over a network by spoofing authentication. The vulnerability has a CVSS score of 10, indicating a severe risk with high impact on integrity and availability. Microsoft has issued an official fix for this cloud-hosted service, and remediation is managed by the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 10.0critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-48567) in Azure HorizonDB involves an authentication bypass via spoofing, categorized under CWE-290. It enables attackers with network access to elevate privileges without proper authentication. The CVSS 3.1 vector indicates the attack requires no privileges or user interaction, has network attack vector, low attack complexity, and results in high impact on integrity and availability with scope change. Microsoft has published an official fix and manages remediation for this cloud service.
Potential Impact
Successful exploitation allows an attacker to bypass authentication controls and elevate privileges within Azure HorizonDB, potentially compromising data integrity and availability. The vulnerability does not affect confidentiality but can lead to significant operational disruption or unauthorized actions within the service.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability and manages remediation for Azure HorizonDB as a cloud service. Users should ensure their Azure HorizonDB instances are updated according to Microsoft's guidance at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48567. No additional user action is required beyond applying the official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-21T20:00:35.245Z
- 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-2026-48567","vendor":"Microsoft"}]
Threat ID: 6a2200c9e29bf47b50d9ee94
Added to database: 6/4/2026, 10:48:41 PM
Last enriched: 6/4/2026, 11:03:32 PM
Last updated: 6/4/2026, 11:50:26 PM
Views: 4
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