CVE-2024-29988 | SmartScreen Prompt Security Feature Bypass Vulnerability

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SmartScreen Prompt Security Feature Bypass Vulnerability

Published: 2024-04-09 Last update: 2025-10-28 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2024-29988 is rated Critical Active Threat (96.9/100): CVSS High severity, with high exploitation likelihood (EPSS 62.77%, 98th percentile). Core evidence: CISA KEV confirms active exploitation (added 2024-04-30) affecting Microsoft / SmartScreen Prompt. a weakness (CWE-693) Unauthenticated remote administrative access may be possible. EPSS rose +2.26% over the last day, indicating growing attacker interest. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2024-29988

Name: Microsoft SmartScreen Prompt Security Feature Bypass Vulnerability · CISA KEV detail

Exploit added: 2024-04-30

Action due: 2024-05-21

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Exploit prediction scoring system (EPSS) score for CVE-2024-29988

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-09 60.50% 62.77% +2.26%
2 2026-05-06 62.77% 60.50% -2.26%
3 2026-03-18 62.77%

Full EPSS history (29 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-29988

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.8 5.9 [email protected]

Weakness enumeration for CVE-2024-29988

Affected software / configurations for CVE-2024-29988

Vendor Product Version Raw CPE
microsoft windows_10_1809 < 10.0.17763.5696 cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:arm64:*
microsoft windows_10_1809 < 10.0.17763.5696 cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
microsoft windows_10_1809 < 10.0.17763.5696 cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
microsoft windows_10_21h2 < 10.0.19044.4291 cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
microsoft windows_10_22h2 < 10.0.19045.4291 cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
microsoft windows_11_21h2 < 10.0.22000.2899 cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
microsoft windows_11_22h2 < 10.0.22621.3447 cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
microsoft windows_11_23h2 < 10.0.22631.3447 cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
microsoft windows_server_2019 < 10.0.17763.5696 cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
microsoft windows_server_2022 < 10.0.20348.2402 cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
microsoft windows_server_2022_23h2 < 10.0.25398.830 cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*

References for CVE-2024-29988

cvelogic Threat Intelligence