Use After Free in Microsoft .Net Framework 3.5 And 4.7.2
CVE-2024-21409
.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Microsoft .Net Framework 3.5 And 4.7.2 — versions 4.7.0
- Microsoft .Net Framework 3.5 And 4.8 — versions 4.8.0
- Microsoft .Net Framework 3.5 And 4.8.1 — versions 4.8.1
- Microsoft .Net Framework 4.6.2 — versions 4.7.0
- Microsoft .Net Framework 4.6.2/4.7/4.7.1/4.7.2 — versions 4.7.0
- Microsoft .Net Framework 4.8 — versions 4.8.0
- Microsoft Visual Studio 2022 Version 17.4 — versions 17.4.0
- Microsoft Visual Studio 2022 Version 17.6 — versions 17.6.0
- Microsoft Visual Studio 2022 Version 17.8 — versions 17.8.0
- Microsoft Visual Studio 2022 Version 17.9 — versions 17.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21409 (vendor-advisory, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-21409?
- CVE-2024-21409 is a high-severity vulnerability in Microsoft .Net Framework 3.5 And 4.7.2, classified under Use After Free. CVSS score: 7.3/10. Published 2024-04-09.
- How severe is CVE-2024-21409?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2024-21409 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.