Bot Framework SDK Remote Code Execution Vulnerability
Priority MEDIUM 48Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Bot Framework SDK Remote Code Execution Vulnerability
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02921 87th percentileScored 2026-11-07
Fix Fixed Bot Framework SDK for .NET Framework (Microsoft): 4.15.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Bot Framework SDK for .NET Framework | 4.0.0 to before 4.15.0 | 4.15.0 | Patch available | CNA |
- Bot Framework SDK for .NET Framework VendorMicrosoft Affected 4.0.0 to before 4.15.0 Fixed in 4.15.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:bot_framework_software_development_kit:-:*:*:*:*:.net_framework:*:* | not specified by NVD | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:bot_framework_software_development_kit:-:*:*:*:*:.net_framework:*:* Versions not specified by NVD Vulnerable ·Microsoft
Remediation
- Fix · CNA Bot Framework SDK for .NET Framework (Microsoft) Fixed in 4.15.0
Timeline
- 2026-10-02 Threatist record created from CVE-2021-43225
- 2026-10-03 Alias added: GHSA-q836-v5rx-28r5
More Microsoft Bot Framework Software Development Kit vulnerabilities
- TI-2021-01441 Bot Framework SDK Information Disclosure Vulnerability CVSS 3.1MEDIUM 5.5
Sources
- CVE-2021-43225 · CVE Program
- CVE-2021-43225 · NVD
- FIRST EPSS
- GHSA-q836-v5rx-28r5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences