CVE-2017-8759
Microsoft .NET Framework Remote Code Execution Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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."
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 88.70% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · first 13 September 2017
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022
- Weakness
- CWE-94
- Affected
- microsoft/.net framework
- Source
- secure@microsoft.com
EPSS 88.7% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2017-8759
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.securityfocus.com/bid/100742Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039324Broken Link, Third Party Advisory, VDB Entry
- https://github.com/GitHubAssessments/CVE_Assessments_01_2020Third Party Advisory
- https://github.com/bhdresh/CVE-2017-8759Exploit, Third Party Advisory
- https://github.com/nccgroup/CVE-2017-8759Exploit, Third Party Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8759Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/42711/Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/100742Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039324Broken Link, Third Party Advisory, VDB Entry
- https://github.com/GitHubAssessments/CVE_Assessments_01_2020Third Party Advisory
- https://github.com/bhdresh/CVE-2017-8759Exploit, Third Party Advisory
- https://github.com/nccgroup/CVE-2017-8759Exploit, Third Party Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8759Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/42711/Third Party Advisory, VDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-8759US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.