CVE-2026-48567

Published Jun 4, 2026

Last updated 4 days ago

Overview

AI description

Automated description summarized from trusted sources.

CVE-2026-48567 is an authentication bypass vulnerability affecting Azure HorizonDB, Microsoft's preview PostgreSQL-compatible database service. Disclosed by Microsoft on June 4, 2026, this flaw allows an unauthorized attacker to bypass authentication through spoofing. Successful exploitation of CVE-2026-48567 enables an attacker to elevate privileges over a network, potentially leading to modifications in system integrity and disruption of service availability within Azure HorizonDB.

Description: Authentication bypass by spoofing in Azure HorizonDB allows an unauthorized attacker to elevate privileges over a network.
Source: secure@microsoft.com
NVD status: Analyzed
CNA Tags: exclusively-hosted-service
Products: azure_horizondb

Risk scores

CVSS 3.1

Type: Primary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

secure@microsoft.com: CWE-290

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:microsoft:azure_horizondb:-:*:*:*:*:*:*:*",
            "matchCriteriaId": "006CB0A5-1DBB-4758-B47D-1CF7925D591F",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.