Microsoft .NET Framework Remote Code Execution Vulnerability
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.
- Vendor
- Microsoft
- Product
- .NET Framework
- CVSS
- 7.8
- EPSS (exploit probability)
- 88.7%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2017-8759 being exploited?
Yes. CISA added CVE-2017-8759 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 88.7% (scored October 14, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-11-13. Full cross-catalog view: /kev-comparison
CVE-2017-8759 timeline
Every event links to its source. Catalog dates are each catalog's own; day offsets count from NVD publication. Data: JSON
What to do
CISA required actionApply updates per vendor instructions.
US federal civilian agencies must remediate by (181 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other Microsoft .NET Framework CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2024-29059 Microsoft .NET Framework Information Disclosure Vulnerability | [ HIGH ] | 7.5 | 98.6% | |
| CVE-2020-0646 Microsoft .NET Framework Remote Code Execution Vulnerability | [ CRITICAL ] | 9.8 | 99.2% |