Microsoft · .NET Framework
CVE-2017-8759
Microsoft .NET Framework Remote Code Execution Vulnerability
What it is
Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to execute code remotely via a malicious document or application, aka ".NET Framework Remote Code Execution Vulnerability."
CISA: Microsoft .NET Framework contains a remote code execution vulnerability when processing untrusted input that could allow an attacker to take control of an affected system.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: May 3, 2022
- Added to the CISA list
- November 3, 2021
- Published
- September 13, 2017
- Severity
- High 7.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 89% in the top 0.2% of all known vulnerabilities
- Weakness
- CWE-20
- More details
- NVD · CVE.org · CISA
All references (7)
- http://www.securityfocus.com/bid/100742
- https://github.com/bhdresh/CVE-2017-8759
- https://github.com/nccgroup/CVE-2017-8759
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8759
- https://www.exploit-db.com/exploits/42711/
- http://www.securitytracker.com/id/1039324
- https://github.com/GitHubAssessments/CVE_Assessments_01_2020
More exploited flaws from Microsoft
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Feb 4, 2025 | Information Disclosure | .NET Framework | High 7.5 | 99% |
| Nov 3, 2021 | Remote Code Execution | .NET Framework | Critical 9.8 | 99.2% |
| Oct 13, 2026 | Command Injection | Windows | High 8.8 | 9.8% |
| Sep 25, 2026 | Code Injection | SharePoint | High 8.8 | 8.2% |
| Sep 8, 2026 | Link Following | Windows | High 7.8 | 0.4% |
| Sep 8, 2026 | Heap-Based Buffer Overflow | Windows | High 7.8 | 0.4% |
| Aug 26, 2026 | Remote Code Execution | SQL Server | High 8.8 | 57% |
| Aug 18, 2026 | Double Free | Internet Key Exchange (IKE) Service Extensions | Critical 9.8 | 77% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.