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 docume
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."
- Published
- Sep 12, 2017
- Updated
- Jun 16, 2026
- EPSS
- 88.7% · 100th percentile
- CWE
- CWE-94
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Report tools
Action score
88
Now
Patch today or shut off access.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 30 / 30 · Listed
- EPSS
- 27 / 30 · 88.7%
CISA SSVC decision
- Exploitation
- active
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Actively exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on Nov 3, 2021. That signals real attacks, not theory.
Remediation deadline for government agencies: May 3, 2022.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| microsoft | .net framework | cpe:2.3:a:microsoft:.net_framework |
| microsoft | windows 7 | cpe:2.3:o:microsoft:windows_7 |
| microsoft | windows 8.1 | cpe:2.3:o:microsoft:windows_8.1 |
| microsoft | windows rt 8.1 | cpe:2.3:o:microsoft:windows_rt_8.1 |
| microsoft | windows server 2008 | cpe:2.3:o:microsoft:windows_server_2008 |
| microsoft | windows server 2012 | cpe:2.3:o:microsoft:windows_server_2012 |
| microsoft | windows 10 1507 | cpe:2.3:o:microsoft:windows_10_1507 |
| microsoft | windows 10 1511 | cpe:2.3:o:microsoft:windows_10_1511 |
| microsoft | windows 10 1607 | cpe:2.3:o:microsoft:windows_10_1607 |
| microsoft | windows 10 1703 | cpe:2.3:o:microsoft:windows_10_1703 |
| microsoft | windows server 2016 | cpe:2.3:o:microsoft:windows_server_2016 |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- microsoft .net framework2.0
- microsoft .net framework3.5
- microsoft .net framework3.5.1
- microsoft .net framework4.5.2
- microsoft .net framework4.6
- microsoft .net framework4.6.1
- microsoft .net framework4.6.2
- microsoft .net framework4.7
Versions reported by the vendor
Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.
Microsoft Corporation Microsoft .NET Framework
- Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7affected
Same product
microsoft: all recordsOther highest-scoring records for the same primary product.
- CVE-2020-0646A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka '.NET Framework Remote KEV99Now
- CVE-2024-29059.NET Framework Information Disclosure VulnerabilityKEV90Now
- CVE-2015-1671The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2; Office 2007 SP3 and 2010KEV76This week
- CVE-2023-36899ASP.NET Elevation of Privilege Vulnerability58Plan
- CVE-2014-0257Microsoft .NET Framework 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine whether it is safe to execute 58Plan
- CVE-2013-3861Microsoft .NET Framework 2.0 SP2, 3.5, 3.5 SP1, 3.5.1, 4, and 4.5 allows remote attackers to cause a denial of service (application crash or56Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Exploit-DB entry ×1
- Proof-of-concept repository on GitHub ×16
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | remote | 2017-09-13 |
| Proof-of-concept repository on GitHub | stars:255 | 2017-09-13 |
| Proof-of-concept repository on GitHub | stars:94 | 2017-09-13 |
| Proof-of-concept repository on GitHub | stars:176 | 2017-09-13 |
| Proof-of-concept repository on GitHub | stars:1 | 2017-09-13 |
| Proof-of-concept repository on GitHub | stars:0 | 2017-09-14 |
| Proof-of-concept repository on GitHub | stars:312 | 2017-09-14 |
| Proof-of-concept repository on GitHub | stars:5 | 2017-09-17 |
| Proof-of-concept repository on GitHub | stars:0 | 2017-09-19 |
| Proof-of-concept repository on GitHub | stars:2 | 2017-09-19 |
| Proof-of-concept repository on GitHub | stars:0 | 2017-09-24 |
| Proof-of-concept repository on GitHub | stars:0 | 2018-12-11 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoCsame day
- CISA KEV+1512 d
- TodaySep 30, 2026+3304 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-94 · Improper Control of Generation of Code ('Code Injection')CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- www.securityfocus.com/bid/100742
- www.securitytracker.com/id/1039324
- github.com/GitHubAssessments/CVE_Assessments_01_2020
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8759
- www.exploit-db.com/exploits/42711/
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-8759
Vendor advisories and official records. Exploit/PoC links are deliberately left out.