CVE-2025-24043
Published: 11 March 2025
Summary
CVE-2025-24043 is a high-severity Improper Verification of Cryptographic Signature (CWE-347) vulnerability in Microsoft Windbg. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 38.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 CM-14 (Signed Components) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly mitigates CVE-2025-24043 by requiring identification, reporting, and correction of the improper cryptographic signature verification flaw in .NET through vendor patching.
Employs cryptographic integrity verification mechanisms to detect and prevent execution of unauthorized or tampered .NET software components despite flawed built-in signature validation.
Mandates digital signatures for system components, enforcing authenticity checks that address improper signature verification in .NET prior to component use.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability enables remote code execution over a network via flawed cryptographic signature verification in .NET components, directly mapping to exploitation of public-facing applications for initial access or code execution.
NVD Description
Improper verification of cryptographic signature in .NET allows an authorized attacker to execute code over a network.
Deeper analysisAI
CVE-2025-24043 is an improper verification of cryptographic signature vulnerability (CWE-347) affecting the .NET framework. Published on 2025-03-11, it enables an authorized attacker to execute code over a network due to flawed signature validation mechanisms within .NET components.
The vulnerability has a CVSS v3.1 base score of 7.5 (AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating exploitation requires network access, high attack complexity, and low privileges. A low-privileged authorized attacker can leverage this flaw without user interaction to achieve high-impact confidentiality, integrity, and availability effects, culminating in remote code execution.
For mitigation details, refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24043.
Details
- CWE(s)