Actively exploited · Published Mar 14, 2023 · Assigned by microsoft

CVE-2023-24880Windows SmartScreen Security Feature Bypass Vulnerability

Medium 4.4 Exploited Ransomware

In plain English

A medium-severity incorrect authorization in Windows 10 Version 1607 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on March 14, 2023). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 78.0% (higher than 99.6% of all known vulnerabilities). Apply updates per vendor instructions.

Severity (CVSS 3.1)4.4Medium
Exploit odds (30 days)78.0%top 0.4% of all CVEs
Exploited in the wildYesCISA KEV since Mar 14, 2023
Attack toolingNoneno public tooling known

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by Apr 4, 2023.

Official description

Windows SmartScreen Security Feature Bypass Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 1809 10.0.17763.0 – before 10.0.17763.4131
Microsoft Windows 10 Version 1809 10.0.0 – before 10.0.17763.4131
Microsoft Windows Server 2019 10.0.17763.0 – before 10.0.17763.4131
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – before 10.0.17763.4131
Microsoft Windows Server 2022 10.0.20348.0 – before 10.0.20348.1607
Microsoft Windows 10 Version 20H2 10.0.0 – before 10.0.19042.2728
Microsoft Windows 11 version 21H2 10.0.0 – before 10.0.22000.1696
Microsoft Windows 10 Version 21H2 10.0.19043.0 – before 10.0.19044.2728
Microsoft Windows 11 version 22H2 10.0.22621.0 – before 10.0.22621.1413
Microsoft Windows 10 Version 22H2 10.0.19045.0 – before 10.0.19045.2728
Microsoft Windows 10 Version 1607 10.0.14393.0 – before 10.0.14393.5786
Microsoft Windows Server 2016 10.0.14393.0 – before 10.0.14393.5786
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – before 10.0.14393.5786

Weakness: CWE-863 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:F/RL:O/RC:C

References