Vulnerability · Published Feb 14, 2023 · Assigned by microsoft
CVE-2023-21808.NET and Visual Studio Remote Code Execution Vulnerability
High 7.8
In plain English
A high-severity use-after-free in Microsoft .NET Framework 3.5 and 4.6.2 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)1.1%top 33.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
.NET and Visual Studio Remote Code Execution Vulnerability
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | dotnet6-build | 6.0.114-r0 | ALPINE-CVE-2023-21808 |
| Alpine:v3.20 | dotnet6-runtime | 6.0.14-r0 | ALPINE-CVE-2023-21808 |
| NuGet | microsoft.netcore.app.runtime.win-arm | 7.0.3 | GHSA-824j-wqm8-89mj |
| NuGet | microsoft.netcore.app.runtime.win-arm | 6.0.14 | GHSA-824j-wqm8-89mj |
| NuGet | microsoft.netcore.app.runtime.win-arm64 | 7.0.3 | GHSA-824j-wqm8-89mj |
| NuGet | microsoft.netcore.app.runtime.win-arm64 | 6.0.14 | GHSA-824j-wqm8-89mj |
| NuGet | microsoft.netcore.app.runtime.win-x64 | 7.0.3 | GHSA-824j-wqm8-89mj |
| NuGet | microsoft.netcore.app.runtime.win-x64 | 6.0.14 | GHSA-824j-wqm8-89mj |
| NuGet | microsoft.netcore.app.runtime.win-x86 | 7.0.3 | GHSA-824j-wqm8-89mj |
| NuGet | microsoft.netcore.app.runtime.win-x86 | 6.0.14 | GHSA-824j-wqm8-89mj |
Affected products (as reported)
Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- .NET and Visual Studio Remote Code Execution Vulnerability vendor-advisory, patch