CVE-2021-26701
.NET Core Remote Code Execution Vulnerability
Severity Score
8.1
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
.NET Core Remote Code Execution Vulnerability
Una Vulnerabilidad de Ejecución de Código Remota de .NET Core. Este ID de CVE es diferente de CVE-2021-24112
A remote code execution vulnerability was found in dotnet in the System.Text.Encodings.Web package, caused by a buffer overrun. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-02-05 CVE Reserved
- 2021-02-25 CVE Published
- 2023-12-30 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
References (9)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26701 | 2023-12-29 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Microsoft Search vendor "Microsoft" | .net Search vendor "Microsoft" for product ".net" | >= 5.0 < 5.0.4 Search vendor "Microsoft" for product ".net" and version " >= 5.0 < 5.0.4" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | .net Core Search vendor "Microsoft" for product ".net Core" | >= 2.1 < 2.1.28 Search vendor "Microsoft" for product ".net Core" and version " >= 2.1 < 2.1.28" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | .net Core Search vendor "Microsoft" for product ".net Core" | >= 3.1 < 3.1.15 Search vendor "Microsoft" for product ".net Core" and version " >= 3.1 < 3.1.15" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Powershell Core Search vendor "Microsoft" for product "Powershell Core" | 7.0 Search vendor "Microsoft" for product "Powershell Core" and version "7.0" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Powershell Core Search vendor "Microsoft" for product "Powershell Core" | 7.1 Search vendor "Microsoft" for product "Powershell Core" and version "7.1" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Visual Studio 2019 Search vendor "Microsoft" for product "Visual Studio 2019" | >= 16.0 <= 16.9 Search vendor "Microsoft" for product "Visual Studio 2019" and version " >= 16.0 <= 16.9" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Visual Studio 2019 Search vendor "Microsoft" for product "Visual Studio 2019" | - | macos |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 32 Search vendor "Fedoraproject" for product "Fedora" and version "32" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 33 Search vendor "Fedoraproject" for product "Fedora" and version "33" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 34 Search vendor "Fedoraproject" for product "Fedora" and version "34" | - |
Affected
| ||||||