What’s Vulnerable › Vulnerabilities

CVE-2021-1725: Bot Framework SDK Information Disclosure Vulnerability

• Severity: low (CVSS 2.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-01-12 · updated 2026-06-17
• Weakness: CWE-287

Description

Bot Framework SDK Information Disclosure Vulnerability

Affected products

• Microsoft Bot Framework SDK for .NET Framework: all versions
• Microsoft Bot Framework SDK for JavaScript: from 4.0.0 before publication — fixed in publication
• Microsoft Bot Framework SDK for Python: from 4.0.0 before publication — fixed in publication
• Microsoft Bot Framework SDK for .NET Framework: from 4.0.0 before publication — fixed in publication

How to fix

Upgrade to a fixed version: Microsoft Bot Framework SDK for JavaScript publication; Microsoft Bot Framework SDK for Python publication; Microsoft Bot Framework SDK for .NET Framework publication. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1725
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1725

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