CVE-2024-21351
HIGHCVSS 7.6/10Actively ExploitedEPSS 30.34%
Last modified
CVE-2024-21351 is a high-severity vulnerability rated 7.6/10 on the CVSS scale. Windows SmartScreen Security Feature Bypass Vulnerability. CISA has confirmed active exploitation in the wild. EPSS estimates a 30.34% chance of exploitation in the next 30 days.
Description
Windows SmartScreen Security Feature Bypass Vulnerability
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1507 | < 10.0.10240.20469 |
| Microsoft | Windows 10 1607 | < 10.0.14393.6709 |
| Microsoft | Windows 10 1809 | < 10.0.17763.5458 |
| Microsoft | Windows 10 21h2 | < 10.0.19044.4046 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.4046 |
| Microsoft | Windows 11 21h2 | < 10.0.22000.2777 |
| Microsoft | Windows 11 22h2 | < 10.0.22621.3155 |
| Microsoft | Windows 11 23h2 | < 10.0.22631.3155 |
| Microsoft | Windows Server 2016 | All versions |
| Microsoft | Windows Server 2019 | < 10.0.17763.5458 |
| Microsoft | Windows Server 2022 | < 10.0.20348.2322 |
| Microsoft | Windows Server 2022 23h2 | < 10.0.25398.709 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21351Patch, Vendor Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21351Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21351US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2024-21351?
Windows SmartScreen Security Feature Bypass Vulnerability
How severe is CVE-2024-21351?
CVE-2024-21351 has a CVSS score of 7.6/10 (HIGH severity). The EPSS model estimates a 30.34% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2024-21351?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2024-21351?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST