CVE-2026-33109
CVE-2026-33109 is a critical-severity vulnerability in Microsoft Azure Managed Instance For Apache Cassandra with a CVSS 3.x base score of 9.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.
Key facts
- Severity: Critical (CVSS 3.x base score 9.9)
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-28448
- Weakness: CWE-284
- Affected product: Microsoft Azure Managed Instance For Apache Cassandra
- Published:
- Last modified:
Description
Improper access control in Azure Managed Instance for Apache Cassandra allows an authorized attacker to execute code over a network.
Frequently asked questions
- What is CVE-2026-33109?
- 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 a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-33109 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-33109?
- CVE-2026-33109 affects Microsoft Azure Managed Instance For Apache Cassandra. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-33109?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2026-33109 have an EU (EUVD) identifier?
- Yes. CVE-2026-33109 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28448.
- When was CVE-2026-33109 published?
- CVE-2026-33109 was published on 2026-05-07 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:microsoft:azure_managed_instance_for_apache_cassandra:-:*:*:*:*:*:*:*
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