Evidence dossier

CVE-2017-8759

CVE-2017-8759

78.3–97.1Priority evidence range

As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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."

State: PUBLISHED
Published: Sep 13, 2017
Updated: Oct 21, 2025
Evidence coverage: 72%

CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS88.70%

2026-07-18 · v2026.06.15 · percentile 99.8%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment

container

CISA ADP Vulnrichment

Jul 19, 2026Original evidence ↗

CVEderivative copy

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CVE Program Container

Jul 19, 2026Original evidence ↗

microsoftoriginal assertion

container

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."

Jul 19, 2026Original evidence ↗

CISA KEVoriginal assertion

observed_exploitation

Microsoft .NET Framework Remote Code Execution Vulnerability

Jul 19, 2026Original evidence ↗

FIRST EPSSoriginal assertion

model_probability

Probability 0.886980000000; percentile 0.997590000000

Jul 19, 2026Original evidence ↗

Applicability

Cited product scope

Trace impact →

Microsoft CorporationMicrosoft .NET Framework

[{"status": "affected", "version": "Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7"}]unknown

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_10_1511:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_10_1511:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_10_1703:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_10_1703:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2008:sp2:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*constrained

Assessments

CVSS by origin

7.8

nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

9.3

nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:M/Au:N/C:C/I:C/A:C

7.8

134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.8

CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Limitations and unknowns

KEV membership is authoritative for the catalog, not proof of exposure in any environment.
EPSS is a dated model probability and not an individual-environment prediction.
Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
NVD-carried upstream facts remain derivative and are not independent corroboration.
Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.