Security readout for executives and security teams
Plain-English summary
CVE-2026-48567 is a critical Microsoft Azure HorizonDB privilege escalation issue. The source states an unauthenticated network attacker can bypass authentication by spoofing and gain elevated privileges. Business urgency is high because no credentials or user interaction are required, but the bundle does not cite active exploitation.
Executive priority
Prioritize this urgently for any environment using Azure HorizonDB. The maximum CVSS score and unauthenticated network path create serious operational risk, even though active exploitation is not cited. Assign ownership for exposure confirmation and remediation verification.
Technical view
The vulnerability is described as CWE-290 authentication bypass by spoofing in Azure HorizonDB. CVSS 3.1 is 10.0 with network attack vector, low complexity, no privileges, no user interaction, changed scope, high integrity impact, and high availability impact. Confidentiality impact is listed as none.
Likely exposure
Exposure appears limited to organizations using Microsoft Azure HorizonDB. The bundle does not provide affected version ranges, deployment details, tenant conditions, or vulnerable configurations, so teams should validate exposure directly against Azure inventory and MSRC guidance.
Exploitation context
The source bundle marks KEV as false and CVSS exploit maturity as unproven. No cited source in the bundle confirms exploitation in the wild or public exploit availability. Treat it as high-risk because attack prerequisites are minimal, not because exploitation is confirmed.
Researcher notes
Evidence is strong for severity, attack characteristics, CWE, and vendor attribution. Evidence is incomplete for affected versions, technical root cause, exploitability details, and exact fixes. Avoid extrapolating beyond Azure HorizonDB and the MSRC advisory.
Mitigation direction
- Review the MSRC advisory for official remediation guidance.
- Apply Microsoft-provided fixes or service updates where applicable.
- Confirm Azure HorizonDB assets are covered by normal vulnerability management tracking.
- Restrict unnecessary network exposure pending vendor guidance.
- Monitor MSRC for affected-version and mitigation updates.
Validation and detection
- Inventory Azure HorizonDB usage across all Azure subscriptions.
- Check whether each instance maps to the MSRC advisory scope.
- Verify remediation status against Microsoft guidance, not assumptions.
- Review identity and access logs for suspicious spoofing-related anomalies.
- Track the CVE until affected-version details are complete.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-290: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-48567 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 10 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H/E:U/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H/E:U/RL:O/RC:C3.95.8microsoftVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H/E:U/RL:O/RC:C
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- Azure HorizonDB Elevation of Privilege VulnerabilityCVE reference, microsoft · vendor-advisory, patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.