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CVE-2026-33844Critical

Azure Managed Instance for Apache Cassandra Remote Code Execution Vulnerability

MSRC advisory NVD CVE.org

Assessment

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

Severity
Critical
CVSS base score
9.0CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
Impact
Remote Code Execution
EPSS, next 30 days
0.8%Higher than 55.1% of scored CVEs · FIRST model run 29 Sep 2026 · about EPSS
Public exploit code
No Nuclei template lists it
Exploitability
Not assessed
Publicly disclosed
No
Customer action
Not required (service-side fix)
Component
Azure Managed Instance for Apache Cassandra
Weakness
CWE-20: Improper Input Validation
Issued by
Microsoft
Published
7 May 2026 · May 2026
Last revised
7 May 2026

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

Azure
1 affected product
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