CVE-2017-8759Microsoft .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 Executio…
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It affects Microsoft Corporation Microsoft .NET Framework and 1 other product. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Nov 3, 2021; federal agencies had to remediate by May 3, 2022. Treat that date as your deadline.
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Free account, 1 product
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
- 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-94
- Known exploited
- Added to CISA KEV Nov 3, 2021; federal remediation due May 3, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 88.70% (percentile 100)
- Assigned by
- microsoft
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Microsoft Corporation Microsoft .NET Framework microsoft:net_framework (from the name) | Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 | CNA record |
microsoft .net_framework microsoft:.net_framework | 4.5.2; 3.5.1; 3.5; 2.0; 4.6.1; 4.6; 4.7; 4.6; and 5 more ranges | NVD |
References
- http://www.securityfocus.com/bid/100742vdb-entry, x-refsource-bid, broken-link, third-party-advisory
- https://github.com/bhdresh/CVE-2017-8759x-refsource-misc, exploit, third-party-advisory
- https://github.com/nccgroup/CVE-2017-8759x-refsource-misc, exploit, third-party-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8759x-refsource-confirm, patch, vendor-advisory
- https://www.exploit-db.com/exploits/42711/exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
- http://www.securitytracker.com/id/1039324vdb-entry, x-refsource-sectrack, broken-link, third-party-advisory
- https://github.com/GitHubAssessments/CVE_Assessments_01_2020x-refsource-misc, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-8759us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.