// For flags

CVE-2025-21171

.NET Remote Code Execution Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

.NET Remote Code Execution Vulnerability

A remote code execution vulnerability was found in .NET. This flaw allows an attacker to load a specially crafted file into a vulnerable application.

It was discovered that .NET did not properly handle input provided to its Convert.TryToHexString method. An attacker could possibly use this issue to execute arbitrary code. It was discovered that .NET did not properly handle an integer overflow when processing certain specially crafted files. An attacker could possibly use this issue to execute arbitrary code. Daniel Plaisted and Noah Gilson discovered that .NET insecurely handled temporary file usage which could result in malicious package dependency injection. An attacker could possibly use this issue to elevate privileges.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2024-12-05 CVE Reserved
  • 2025-01-14 CVE Published
  • 2025-01-15 EPSS Updated
  • 2025-01-31 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-122: Heap-based Buffer Overflow
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
 PowerShell 7.5
Search vendor "Microsoft" for product "PowerShell 7.5"
 7.5.0
Search vendor "Microsoft" for product "PowerShell 7.5" and version "7.5.0"
en
Affected
Microsoft
Search vendor "Microsoft"
 .NET 9.0
Search vendor "Microsoft" for product ".NET 9.0"
 >= 9.0.0 < 9.0.1
Search vendor "Microsoft" for product ".NET 9.0" and version " >= 9.0.0 < 9.0.1"
en
Affected
Microsoft
Search vendor "Microsoft"
 Microsoft Visual Studio 2022 Version 17.12
Search vendor "Microsoft" for product "Microsoft Visual Studio 2022 Version 17.12"
 >= 17.0.0 < 17.12.4
Search vendor "Microsoft" for product "Microsoft Visual Studio 2022 Version 17.12" and version " >= 17.0.0 < 17.12.4"
en
Affected
Microsoft
Search vendor "Microsoft"
 Microsoft Visual Studio 2022 Version 17.6
Search vendor "Microsoft" for product "Microsoft Visual Studio 2022 Version 17.6"
 >= 17.6.0 < 17.6.22
Search vendor "Microsoft" for product "Microsoft Visual Studio 2022 Version 17.6" and version " >= 17.6.0 < 17.6.22"
en
Affected
Microsoft
Search vendor "Microsoft"
 Microsoft Visual Studio 2022 Version 17.8
Search vendor "Microsoft" for product "Microsoft Visual Studio 2022 Version 17.8"
 >= 17.8.0 < 17.8.17
Search vendor "Microsoft" for product "Microsoft Visual Studio 2022 Version 17.8" and version " >= 17.8.0 < 17.8.17"
en
Affected
Microsoft
Search vendor "Microsoft"
 Microsoft Visual Studio 2022 Version 17.10
Search vendor "Microsoft" for product "Microsoft Visual Studio 2022 Version 17.10"
 >= 17.10.0 < 17.10.10
Search vendor "Microsoft" for product "Microsoft Visual Studio 2022 Version 17.10" and version " >= 17.10.0 < 17.10.10"
en
Affected