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CVE-2024-21421: Azure SDK Spoofing Vulnerability

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-03-12 · updated 2026-06-17
• Weakness: CWE-1395

Description

Azure SDK Spoofing Vulnerability

Affected products

• Microsoft Azure SDK: from 1.0.0 before 1.29.5 — fixed in 1.29.5
• Microsoft Azure SDK: from 1.0.0 before 1.29.5 — fixed in 1.29.5

How to fix

Upgrade to a fixed version: Microsoft Azure SDK 1.29.5; Microsoft Azure SDK 1.29.5. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21421
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21421

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