CVE-2026-33109 — CRITICAL (9.9)

Vulnerability Description

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

CVSS Score

9.9

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Azure Managed Instance For Apache Cassandra	-

Related Weaknesses (CWE)

CWE-284

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33109Vendor Advisory

FAQ

What is CVE-2026-33109?

CVE-2026-33109 is a vulnerability with a CVSS score of 9.9 (CRITICAL). Improper access control in Azure Managed Instance for Apache Cassandra allows an authorized attacker to execute code over a network.

How severe is CVE-2026-33109?

CVE-2026-33109 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-33109?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Azure Managed Instance For Apache Cassandra.