CVE-2024-43499
CVE-2024-43499 is a high-severity vulnerability in Microsoft .net with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-409.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 3% (84th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-3204
- Weakness: CWE-409
- Affected product: Microsoft .net
- Published:
- Last modified:
Description
.NET and Visual Studio Denial of Service Vulnerability
Frequently asked questions
- What is CVE-2024-43499?
- .NET and Visual Studio Denial of Service Vulnerability
- How severe is CVE-2024-43499?
- CVE-2024-43499 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2024-43499 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-43499?
- CVE-2024-43499 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-2024-43499?
- 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.
- Does CVE-2024-43499 have an EU (EUVD) identifier?
- Yes. CVE-2024-43499 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3204.
- When was CVE-2024-43499 published?
- CVE-2024-43499 was published on 2024-11-12 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:a:microsoft:.net:9.0.0:*:*:*:*:*:*:*
- 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-2026-47303 — High (CVSS 8.8): Authentication bypass by assumed-immutable data in ASP.NET Core allows an authorized attacker to elevate privileges…
- CVE-2026-47300 — High (CVSS 8.8): Incorrect implementation of authentication algorithm in ASP.NET Core allows an authorized attacker to elevate…
- 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
All CVEs affecting Microsoft .net →
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