Microsoft NET Framework up to 4.8.1 path traversal

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Microsoft NET Framework up to 4.8.1. Impacted is an unknown function. Performing a manipulation results in path traversal. This vulnerability was named CVE-2026-65810. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability was found in Microsoft NET Framework up to 4.8.1. It has been classified as problematic. This affects an unknown code. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Relative path traversal in .NET Framework allows an unauthorized attacker to elevate privileges locally.

The advisory is shared at msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2026-65810 since 07/22/2026. The exploitability is told to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/29/2026). MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 341336 (Microsoft .NET Framework (August 2026)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (341336), EUVD (EUVD-2026-56745) and CERT Bund (WID-SEC-2026-2761). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Microsoft PowerShell
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2022
  • Microsoft .NET Framework
  • Microsoft Visual Studio Code
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2025
  • RESF Rocky Linux
  • Microsoft Windows
  • Microsoft .NET
  • Ubuntu Linux
  • Oracle Linux
  • Microsoft Visual Studio 2022
  • Microsoft Visual Studio 2026

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 341336
Nessus Name: Microsoft .NET Framework (August 2026)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/22/2026 CVE reserved
08/11/2026 +20 days VulDB entry created
08/12/2026 +0 days Advisory disclosed
08/29/2026 +17 days VulDB entry last update

Sourcesinfo

Vendor: microsoft.com

Advisory: msrc.microsoft.com
Status: Confirmed

CVE: CVE-2026-65810 (🔒)
GCVE (CVE): GCVE-0-2026-65810
GCVE (VulDB): GCVE-100-388833
EUVD: 🔒
CERT Bund: WID-SEC-2026-2761 - Microsoft Developer Tools: Mehrere Schwachstellen

Entryinfo

Created: 08/12/2026 00:43
Updated: 08/29/2026 04:18
Changes: 08/12/2026 00:43 (52), 08/15/2026 02:18 (7), 08/17/2026 03:40 (1), 08/20/2026 05:58 (1), 08/29/2026 04:18 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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