CVE-2024-29988: Microsoft SmartScreen Prompt Security Feature Bypass Vulnerability

CVE-2024-29988 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2024-04-30

Microsoft SmartScreen Prompt contains a security feature bypass vulnerability that allows an attacker to bypass the Mark of the Web (MotW) protection. This flaw can be chained with other vulnerabilities to execute malicious files without triggering expected security warnings.

Vendors: Microsoft.

Quick answers

Is CVE-2024-29988 exploited in the wild?
Yes. CVE-2024-29988 is known to be exploited in the wild, first recorded on 30 April 2024. Treat it as urgent.
How severe is CVE-2024-29988?
Critical severity, with a CVSS score of 8.8, published 30 April 2024.
Which products and versions are affected?
Microsoft Windows 10 1809, 21H2, 22H2; Microsoft Windows 11 21H2, 22H2, 23H2; Microsoft Windows Server 2019 All versions; Microsoft Windows Server 2022 All versions; and 1 more.
Is there a fix for CVE-2024-29988?
A patch was published on 2024-05-03: NIST analysis and patch information updated Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2024-29988 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2024-29988?
Check whether you run Microsoft SmartScreen Prompt. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft Windows 10 1809, 21H2, 22H2
  • Microsoft Windows 11 21H2, 22H2, 23H2
  • Microsoft Windows Server 2019 All versions
  • Microsoft Windows Server 2022 All versions
  • Microsoft Windows Server 2022 23H2 All versions

Timeline

  • 2024-04-09: disclosed: Initial disclosure by Microsoft Corporation
  • 2024-04-30: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2024-04-30: advisory: NVD publication date
  • 2024-05-03: patched: NIST analysis and patch information updated

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.