Cyber Posture

CVE-2026-33109

Critical

Published: 07 May 2026

Published
07 May 2026
Modified
08 May 2026
KEV Added
Patch
CVSS Score 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0006 19.6th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-33109 is a critical-severity Improper Access Control (CWE-284) vulnerability in Microsoft Azure Managed Instance For Apache Cassandra. Its CVSS base score is 9.9 (Critical).

Operationally, ranked at the 19.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-284

The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.

addresses: CWE-284

Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.

addresses: CWE-284

Supervision and review of access control activities directly detects and remediates improper access configurations or usages.

addresses: CWE-284

Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.

addresses: CWE-284

By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.

addresses: CWE-284

Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.

addresses: CWE-284

Requiring prior authorization for each remote access type prevents improper access control over remote connections.

addresses: CWE-284

Requiring authorization of wireless access before allowing connections enforces proper access control for this access method.

NVD Description

Improper access control in Azure Managed Instance for Apache Cassandra allows an authorized attacker to execute code over a network.

Deeper analysisAI

Automated synthesis unavailable for this CVE.

Details

CWE(s)

Affected Products

microsoft
azure managed instance for apache cassandra
all versions

CVEs Like This One

CVE-2026-33844Same product: Microsoft Azure Managed Instance For Apache Cassandra
CVE-2025-54914Same vendor: Microsoft
CVE-2025-21359Same vendor: Microsoft
CVE-2026-27914Same vendor: Microsoft
CVE-2026-24303Same vendor: Microsoft
CVE-2026-21238Same vendor: Microsoft
CVE-2026-20929Same vendor: Microsoft
CVE-2025-21405Same vendor: Microsoft
CVE-2026-21262Same vendor: Microsoft
CVE-2026-26183Same vendor: Microsoft

References