CVEs / CVE-2023-32049
CVE-2023-32049: Microsoft Windows Defender SmartScreen Security Feature Bypass Vulnerability
- Known exploited in the CISA KEV catalog since 11 Jul 2023
- high 8.8 CVSS 3.1 (from the CNA)
- EPSS 4.15% chance of exploitation in the next 30 days, higher than 90% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Microsoft Windows Defender SmartScreen contains a security feature bypass vulnerability that allows an attacker to bypass the Open File - Security Warning prompt.
Description
Windows SmartScreen Security Feature Bypass Vulnerability
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows 10 Version 1809 | from 10.0.17763.0, before 10.0.17763.4645 | 10.0.17763.4645 |
| Microsoft Windows 10 Version 1809 | from 10.0.0, before 10.0.17763.4645 | 10.0.17763.4645 |
| Microsoft Windows Server 2019 | from 10.0.17763.0, before 10.0.17763.4645 | 10.0.17763.4645 |
| Microsoft Windows Server 2019 (Server Core installation) | from 10.0.17763.0, before 10.0.17763.4645 | 10.0.17763.4645 |
| Microsoft Windows Server 2022 | from 10.0.20348.0, before 10.0.20348.1850 | 10.0.20348.1850 |
| Microsoft Windows 11 version 21H2 | from 10.0.0, before 10.0.22000.2176 | 10.0.22000.2176 |
| Microsoft Windows 10 Version 21H2 | from 10.0.19043.0, before 10.0.19044.3208 | 10.0.19044.3208 |
| Microsoft Windows 11 version 22H2 | from 10.0.22621.0, before 10.0.22621.1992 | 10.0.22621.1992 |
| Microsoft Windows 10 Version 22H2 | from 10.0.19045.0, before 10.0.19045.3208 | 10.0.19045.3208 |
| Microsoft Windows 10 Version 1607 | from 10.0.14393.0, before 10.0.14393.6085 | 10.0.14393.6085 |
| Microsoft Windows Server 2016 | from 10.0.14393.0, before 10.0.14393.6085 | 10.0.14393.6085 |
| Microsoft Windows Server 2016 (Server Core installation) | from 10.0.14393.0, before 10.0.14393.6085 | 10.0.14393.6085 |
Exploitation
| In CISA KEV since | 11 Jul 2023 |
|---|---|
| Due date for US federal agencies | 1 Aug 2023 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions or discontinue use of the product if updates are unavailable. |
Severity
| CVSS 3.1 | 8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HScored by the CNA ([email protected]) |
|---|
References
- CVE-2023-32049 on NVD
- CVE-2023-32049 in the CISA KEV catalog
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-32049 (cited by CISA)
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-32049 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32049 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.