CVE-2024-21351
RCE in Microsoft Windows 10 1507 ≤ 10.0.10240.20469
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:LCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2024-21351 is a high-severity Code Injection (CWE-94) vulnerability in Microsoft Windows 10 1507. Its CVSS base score is 7.6 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Junk Data (T1001.001); ranked in the top 2% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.
The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2024-21351 is a security feature bypass vulnerability in Windows SmartScreen that allows an attacker to circumvent the platform's warnings and reputation checks for potentially malicious downloads or web content. The affected component is the SmartScreen filter integrated into Windows, which normally inspects files and URLs before execution or opening.
An unauthenticated remote attacker can exploit the flaw by serving specially crafted content over the network that triggers the bypass when a user interacts with it, such as by clicking a link or opening a file. Successful exploitation can result in limited disclosure of information, high impact on integrity through execution of attacker-controlled code, and limited availability effects, all without requiring elevated privileges on the target system.
Microsoft's security update guide for CVE-2024-21351 describes the availability of patches that address the bypass condition, and the vulnerability is tracked in the CISA Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. The associated EPSS score has reached a peak of 0.1316 with a current value of 0.1067.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-19063
Vulnerability Data
Windows SmartScreen Security Feature Bypass Vulnerability
- CWE(s)
- KEV Date Added
- 13 February 2024
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V1.3.1
Mitigating Controls (NIST 800-53 r5) AI
Developer testing and evaluation finds code paths that accept and execute externally influenced strings.
Input validation directly stops untrusted data from being used to construct executable code without neutralization.
Least privilege limits the damage an injected code fragment can perform once executed.
Requiring documented secure development standards and tools enforces use of safe code-generation APIs and escaping.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
PR.PS-06's SDLC practices directly target injection flaws via secure coding and testing (mostly), yet as a single broad outcome it leaves many code-generation specifics unaddressed (partial).
PR.DS-10 protects runtime data confidentiality/integrity but has no bearing on neutralizing externally influenced input during code generation, so neither direction shows any preventive effect.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.