netVigilance Vulnerability intelligence since 2004
CVE-2023-24880 · netVigilance record NV23-0027

Microsoft Windows SmartScreen Security Feature Bypass

past due ransomware

What to do

Apply updates per vendor instructions.

CISA deadline 2023-04-04 · passed 3 years 5 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA

What happened

Microsoft Windows SmartScreen contains a security feature bypass vulnerability that could allow an attacker to evade Mark of the Web (MOTW) defenses via a specially crafted malicious file.

Who is affected

Microsoft Windows. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.

Weakness class: CWE-863.

Timeline

  1. Added to CISA KEVExploitation in the wild confirmed by CISA
  2. CISA remediation deadlinepassed 3 years 5 months ago

Sources