Exploited vulnerability · CISA KEV

Is CVE-2024-29059 exploited? Yes: in CISA KEV since 4 Feb 2025

Gociux · Microsoft .NET Framework · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2024-29059, Microsoft .NET Framework Information Disclosure Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 4 Feb 2025, 319 days after it was published. It affects Microsoft .NET Framework. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What it is

Microsoft .NET Framework contains an information disclosure vulnerability that exposes the ObjRef URI to an attacker, ultimately enabling remote code execution.

What to do

1. Check whether you run it. Look for .NET Framework in your asset inventory, including appliances and cloud images. Stack check lists every exploited Microsoft CVE at once.
2. Apply the fix. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 22 Mar 2024.
4. Get told next time. Email alerts when CISA adds a CVE for Microsoft.

Other exploited CVEs in .NET Framework

• CVE-2017-8759: Microsoft .NET Framework Remote Code Execution Vulnerability (3 Nov 2021)
• CVE-2020-0646: Microsoft .NET Framework Remote Code Execution Vulnerability (3 Nov 2021)

References

• msrc.microsoft.com/update-guide/vulnerability/CVE-2024-29059
• nvd.nist.gov/vuln/detail/CVE-2024-29059

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in February 2025 · Microsoft scorecard · act-now radar.