How severe is CVE-2023-33126?

CVE-2023-33126 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-33126 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-33126?

CVE-2023-33126 primarily affects Microsoft .net. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-33126?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-33126 published?

CVE-2023-33126 was published on 2023-06-14 and last updated on 2026-06-17.

CVE-2023-33126

CVE-2023-33126 is a high-severity vulnerability in Microsoft .net with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft .net
Published: 2023-06-14
Last modified: 2026-06-17

Description

.NET and Visual Studio Remote Code Execution Vulnerability

Frequently asked questions

What is CVE-2023-33126?: .NET and Visual Studio Remote Code Execution Vulnerability
How severe is CVE-2023-33126?: CVE-2023-33126 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-33126 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-33126?: CVE-2023-33126 primarily affects Microsoft .net. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-33126?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-33126 published?: CVE-2023-33126 was published on 2023-06-14 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33126

Affected products (2)

cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*

More vulnerabilities in Microsoft .net

CVE-2024-43498 — Critical (CVSS 9.8): .NET and Visual Studio Remote Code Execution Vulnerability
CVE-2024-0057 — Critical (CVSS 9.1): NET, .NET Framework, and Visual Studio Security Feature Bypass Vulnerability
CVE-2025-21176 — High (CVSS 8.8): .NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
CVE-2024-0056 — High (CVSS 8.7): Microsoft.Data.SqlClient and System.Data.SqlClient SQL Data Provider Security Feature Bypass Vulnerability
CVE-2024-38229 — High (CVSS 8.1): .NET and Visual Studio Remote Code Execution Vulnerability
CVE-2024-35264 — High (CVSS 8.1): .NET and Visual Studio Remote Code Execution Vulnerability

All CVEs affecting Microsoft .net →