CVE-2017-8759

Name: CVE-2017-8759
Creator: NVD / NIST
Published: 2017-09-13T01:29:12.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10Actively ExploitedEPSS 88.70%

Last modified Jun 17, 2026

CVE-2017-8759 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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 has confirmed active exploitation in the wild. EPSS estimates a 88.70% chance of exploitation in the next 30 days.

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."

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

88.70%

99.8th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 3, 2022.

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions	Update
Microsoft	.Net Framework	4.5.2	—
Microsoft	.Net Framework	3.5.1	—
Microsoft	.Net Framework	3.5	—
Microsoft	.Net Framework	2.0	Sp2
Microsoft	.Net Framework	4.6.1	—
Microsoft	.Net Framework	4.6	—
Microsoft	.Net Framework	4.7	—
Microsoft	.Net Framework	4.6.2	—

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

Timeline

Published: Sep 13, 2017
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2017-8759?

How severe is CVE-2017-8759?

CVE-2017-8759 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 88.70% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2017-8759?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-8759?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST