01 Record

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

HighKEVPUBLISHEDCNA: microsoft

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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02 Description

03 Exploitation and scoring

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2021-11-03. Federal remediation due 2022-05-03.

SSVC decision

ExploitationactiveCISA reports credible evidence of active exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

88.69% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 99.7% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2017-09-13 01:00Z9 YR AGO

Last updated

2025-10-21 23:55Z1 YR AGO

Reserved

2017-05-03

Assigning CNA

microsoft

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

CWE-94Improper Control of Generation of Code ('Code Injection')Base

Data version

5.1

Document digest

7bedb644d930e8c4f0f329c925cb896213664e5cc58520c95b9c9e9246af6349

05 Affected products

VendorProductVersionsPlatforms

Microsoft CorporationMicrosoft .NET FrameworkMicrosoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7—

06 References

www.securityfocus.com100742http://www.securityfocus.com/bid/100742vdb-entryx_refsource_BID
github.comhttps://github.com/bhdresh/CVE-2017-8759x_refsource_MISC
github.comhttps://github.com/nccgroup/CVE-2017-8759x_refsource_MISC
portal.msrc.microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8759x_refsource_CONFIRM
www.exploit-db.com42711https://www.exploit-db.com/exploits/42711/exploitx_refsource_EXPLOIT-DB
www.securitytracker.com1039324http://www.securitytracker.com/id/1039324vdb-entryx_refsource_SECTRACK
github.comhttps://github.com/GitHubAssessments/CVE_Assessments_01_2020x_refsource_MISC
www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-8759government-resource