VDB
CVE-2026-21531
CVE-2026-21531
PUBLISHED
CVSS 9.800000190734863 CRITICAL
Azure AI Language Authoring Elevation of Privilege Vulnerability can Lead to RCE
EPSS 0.48% · 65.5th percentile
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
EPSS Score
0.48%
65.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| microsoft | azure_local | 1.0.0 |
| microsoft | azure_ai_language_authoring | 1.0.0 |
| microsoft | azure_conversation_authoring_client_library | 1.0.0, 1.0.0, 1.0.0 |
| PyPI | azure-ai-language-conversations-authoring | 0, 0 |
| Microsoft | Azure Local | 1.0.0 |
| Microsoft | Azure AI Language Authoring | 1.0.0 |
Exploit Intelligence
- https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1 (msrc)
- Azure Local Remote Code Execution Vulnerability (circl)
- CIRCL seen: CVE-2026-21228 (circl-sighting)
- CIRCL seen: CVE-2026-21228 (circl-sighting)
- CIRCL seen: CVE-2026-21228 (circl-sighting)
- CIRCL seen: CVE-2026-21531 (circl-sighting)
- CIRCL seen: CVE-2026-21531 (circl-sighting)
- CIRCL seen: CVE-2026-21531 (circl-sighting)
- CIRCL seen: CVE-2026-21531 (circl-sighting)
- CIRCL seen: CVE-2026-21531 (circl-sighting)
…and 6 more exploits
Timeline
- Feb 10, 2026 CVE Published
- Feb 10, 2026 PoC Published
- Feb 10, 2026 PoC Published
- Feb 10, 2026 PoC Published
- Feb 11, 2026 EPSS Score
- Feb 11, 2026 PoC Published
- Feb 11, 2026 PoC Published
- Feb 11, 2026 PoC Published
- Feb 11, 2026 PoC Published
- Feb 11, 2026 PoC Published
- Feb 12, 2026 CVE Updated
- Feb 13, 2026 EPSS Score
References
- Azure SDK for Python Remote Code Execution Vulnerability vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-21531 advisory
- https://github.com/Azure/azure-sdk-for-python package
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21528 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21512 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21228 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21529 advisory