CVEs / CVE-2024-21351
CVE-2024-21351: Microsoft Windows SmartScreen Security Feature Bypass Vulnerability
- Known exploited in the CISA KEV catalog since 13 Feb 2024
- high 7.6 CVSS 3.1 (from the CNA)
- EPSS 27.7% chance of exploitation in the next 30 days, higher than 98% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Microsoft Windows SmartScreen contains a security feature bypass vulnerability that allows an attacker to bypass the SmartScreen user experience and inject code to potentially gain code execution, which could lead to some data exposure, lack of system availability, or both.
Description
Windows SmartScreen Security Feature Bypass Vulnerability
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows 10 Version 1507 | from 10.0.10240.0, before 10.0.10240.20469 | 10.0.10240.20469 |
| Microsoft Windows 10 Version 1607 | from 10.0.14393.0, before 10.0.14393.6709 | 10.0.14393.6709 |
| Microsoft Windows 10 Version 1809 | from 10.0.17763.0, before 10.0.17763.5458 | 10.0.17763.5458 |
| Microsoft Windows 10 Version 1809 | from 10.0.0, before 10.0.17763.5458 | 10.0.17763.5458 |
| Microsoft Windows 10 Version 21H2 | from 10.0.19043.0, before 10.0.19044.4046 | 10.0.19044.4046 |
| Microsoft Windows 10 Version 22H2 | from 10.0.19045.0, before 10.0.19045.4046 | 10.0.19045.4046 |
| Microsoft Windows 11 version 21H2 | from 10.0.0, before 10.0.22000.2777 | 10.0.22000.2777 |
| Microsoft Windows 11 version 22H2 | from 10.0.22621.0, before 10.0.22621.3155 | 10.0.22621.3155 |
| Microsoft Windows 11 version 22H3 | from 10.0.22631.0, before 10.0.22631.3155 | 10.0.22631.3155 |
| Microsoft Windows 11 Version 23H2 | from 10.0.22631.0, before 10.0.22631.3155 | 10.0.22631.3155 |
| Microsoft Windows Server 2016 | from 10.0.14393.0, before 10.0.14393.6709 | 10.0.14393.6709 |
| Microsoft Windows Server 2019 | from 10.0.17763.0, before 10.0.17763.5458 | 10.0.17763.5458 |
| Microsoft Windows Server 2022 | from 10.0.20348.0, before 10.0.20348.2322 | 10.0.20348.2322 |
Exploitation
| In CISA KEV since | 13 Feb 2024 |
|---|---|
| Due date for US federal agencies | 5 Mar 2024 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 7.6 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:LScored by the CNA ([email protected]) |
|---|---|
| Weakness | CWE-94 |
References
- CVE-2024-21351 on NVD
- CVE-2024-21351 in the CISA KEV catalog
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2024-21351 (cited by CISA)
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21351 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21351 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.