CVE-2026-81349
CVE-2026-81349 is a high-severity vulnerability in Microsoft Azure Hdinsight with a CVSS 3.x base score of 7.2. 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-78.
Key facts
- Severity: High (CVSS 3.x base score 7.2)
- EPSS exploit prediction: 1% (62nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Microsoft Azure Hdinsight
- Published:
- Last modified:
Description
Improper neutralization of special elements used in an os command ('os command injection') in Azure HDInsights allows an authorized attacker to elevate privileges over a network.
Frequently asked questions
- What is CVE-2026-81349?
- Improper neutralization of special elements used in an os command ('os command injection') in Azure HDInsights allows an authorized attacker to elevate privileges over a network.
- How severe is CVE-2026-81349?
- CVE-2026-81349 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-81349 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-81349?
- CVE-2026-81349 affects Microsoft Azure Hdinsight. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-81349?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-81349 published?
- CVE-2026-81349 was published on 2026-09-08 and last updated on 2026-09-23.
References
Affected products (1)
- cpe:2.3:a:microsoft:azure_hdinsight:*:*:*:*:*:*:*:*
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