RCE in Microsoft .Net Framework
CVE-2017-8759
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."
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.887 (99.8th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.887 · newest: 0.887 · change: 0.000
Affected products
- Microsoft .Net Framework — versions 4.5.2, 3.5.1, 3.5
- Microsoft Windows 10 1507
- Microsoft Windows 10 1511
- Microsoft Windows 10 1607
- Microsoft Windows 10 1703
- Microsoft Windows 7
- Microsoft Windows 8.1
- Microsoft Windows Rt 8.1
- Microsoft Windows Server 2008 — versions r2, sp2
- Microsoft Windows Server 2012 — versions r2
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/100742 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- github.com/bhdresh/CVE-2017-8759 (Exploit, Third Party Advisory)
- github.com/nccgroup/CVE-2017-8759 (Exploit, Third Party Advisory)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8759 (Patch, Vendor Advisory)
- www.exploit-db.com/exploits/42711/ (VDB Entry, Third Party Advisory, exploit)
- www.securitytracker.com/id/1039324 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- github.com/GitHubAssessments/CVE_Assessments_01_2020 (Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2017-8759?
- CVE-2017-8759 is a high-severity vulnerability in Microsoft .Net Framework, classified under Code Injection. CVSS score: 7.8/10. Published 2017-09-13.
- How severe is CVE-2017-8759?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2017-8759 known to be exploited?
- Yes. CVE-2017-8759 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 140 public proof-of-concept repositories are indexed.