Apr 2024: SmartScreen Prompt Security Feature Bypass Vulnerability
CVE-2024-29988 Published on April 9, 2024

SmartScreen Prompt Security Feature Bypass Vulnerability
SmartScreen Prompt Security Feature Bypass Vulnerability

Vendor Advisory NVD

Known Exploited Vulnerability

This Microsoft SmartScreen Prompt Security Feature Bypass Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Microsoft SmartScreen Prompt contains a security feature bypass vulnerability that allows an attacker to bypass the Mark of the Web (MotW) feature. This vulnerability can be chained with CVE-2023-38831 and CVE-2024-21412 to execute a malicious file.

The following remediation steps are recommended / required by May 21, 2024: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Weakness Type

Protection Mechanism Failure

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. This weakness covers three distinct situations. A "missing" protection mechanism occurs when the application does not define any mechanism against a certain class of attack. An "insufficient" protection mechanism might provide some defenses - for example, against the most common attacks - but it does not protect against everything that is intended. Finally, an "ignored" mechanism occurs when a mechanism is available and in active use within the product, but the developer has not applied it in some code path.

Products Associated with CVE-2024-29988

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Microsoft Windows 11 23h2

Microsoft Windows Server 2022

Microsoft Windows Server 2019

Microsoft Windows Server 2022 23h2

Microsoft Windows 10

Microsoft Windows 11

Microsoft Windows Server 23h2

Affected Versions

Microsoft Windows 10 Version 1809:

Version 10.0.17763.0 and below 10.0.17763.5696 is affected.

Microsoft Windows 10 Version 1809:

Version 10.0.0 and below 10.0.17763.5696 is affected.

Microsoft Windows Server 2019:

Version 10.0.17763.0 and below 10.0.17763.5696 is affected.

Microsoft Windows Server 2019 (Server Core installation):

Version 10.0.17763.0 and below 10.0.17763.5696 is affected.

Microsoft Windows Server 2022:

Version 10.0.20348.0 and below 10.0.20348.2402 is affected.

Microsoft Windows 11 version 21H2:

Version 10.0.0 and below 10.0.22000.2899 is affected.

Microsoft Windows 10 Version 21H2:

Version 10.0.19043.0 and below 10.0.19044.4291 is affected.

Microsoft Windows 11 version 22H2:

Version 10.0.22621.0 and below 10.0.22621.3447 is affected.

Microsoft Windows 10 Version 22H2:

Version 10.0.19045.0 and below 10.0.19045.4291 is affected.

Microsoft Windows 11 version 22H3:

Version 10.0.22631.0 and below 10.0.22631.3447 is affected.

Microsoft Windows 11 Version 23H2:

Version 10.0.22631.0 and below 10.0.22631.3447 is affected.

Microsoft Windows Server 2022, 23H2 Edition (Server Core installation):

Version 10.0.25398.0 and below 10.0.25398.830 is affected.

Exploit Probability

EPSS

66.84%

Percentile

98.52%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.