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NVD / CVE Program· CNA microsoft

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

HighCVSS 8.8 · v3.1KEVWeaponized Fix available

Noroxi assessment

Priority: This week (action score 79/100)

  • CISA has confirmed exploitation in the wild (Apr 30, 2024). Remediation deadline for US federal agencies: May 21, 2024.
  • Probability of exploitation in the next 30 days: 45.1% (FIRST EPSS); higher than 98.7% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: Windows 10 Version 1809 for 32-bit Systems 10.0.17763.5696; Windows 10 Version 1809 for ARM64-based Systems 10.0.17763.5696; Windows 10 Version 1809 for x64-based Systems 10.0.17763.5696.

Don’t wait for the next maintenance window. Upgrade to Windows 10 Version 1809 for 32-bit Systems 10.0.17763.5696; Windows 10 Version 1809 for ARM64-based Systems 10.0.17763.5696; Windows 10 Version 1809 for x64-based Systems 10.0.17763.5696 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

Published
Apr 9, 2024
Updated
Jun 17, 2026
EPSS
45.1% · 98th percentile

Report tools

JSON

Action score

79

This week

Don’t wait for the next maintenance window.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
30 / 30 · Listed
EPSS
14 / 30 · 45.1%

CISA SSVC decision

Exploitation
active
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · microsoft
8.8
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Apr 30, 2024. That signals real attacks, not theory.

Remediation deadline for US federal agencies: May 21, 2024.

Get told when this record changes

  • In CISA KEV: exploitation in the wild confirmed
  • Weaponized exploit exists
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
microsoftwindows 10 1809
microsoftwindows 10 21h2
microsoftwindows 10 22h2
microsoftwindows 11 21h2
microsoftwindows 11 22h2
microsoftwindows 11 23h2
microsoftwindows server 2019
microsoftwindows server 2022
microsoftwindows server 2022 23h2

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • microsoft windows server 2019before 10.0.17763.5696
  • microsoft windows server 2022before 10.0.20348.2402
  • microsoft windows server 2022 23h2before 10.0.25398.830

Versions reported by the vendor

Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.

  • Microsoft Windows 10 Version 1809

    • 10.0.17763.0 and later · before 10.0.17763.5696affected
    • 10.0.0 and later · before 10.0.17763.5696affected

  • Microsoft Windows 10 Version 21H2

    • 10.0.19043.0 and later · before 10.0.19044.4291affected

  • Microsoft Windows 10 Version 22H2

    • 10.0.19045.0 and later · before 10.0.19045.4291affected

  • Microsoft Windows 11 version 21H2

    • 10.0.0 and later · before 10.0.22000.2899affected

  • Microsoft Windows 11 version 22H2

    • 10.0.22621.0 and later · before 10.0.22621.3447affected

  • Microsoft Windows 11 version 22H3

    • 10.0.22631.0 and later · before 10.0.22631.3447affected

  • Microsoft Windows 11 Version 23H2

    • 10.0.22631.0 and later · before 10.0.22631.3447affected

  • Microsoft Windows Server 2019

    • 10.0.17763.0 and later · before 10.0.17763.5696affected

  • Microsoft Windows Server 2019 (Server Core installation)

    • 10.0.17763.0 and later · before 10.0.17763.5696affected

  • Microsoft Windows Server 2022

    • 10.0.20348.0 and later · before 10.0.20348.2402affected

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

    • 10.0.25398.0 and later · before 10.0.25398.830affected

Same product

microsoft: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-21412Internet Shortcut Files Security Feature Bypass VulnerabilityKEV
    92Now
  • CVE-2021-36934Windows Elevation of Privilege VulnerabilityKEV
    81Now
  • CVE-2024-21338Windows Kernel Elevation of Privilege VulnerabilityKEV
    80Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-26255Apr 9, 2024 · Windows Remote Access Connection Manager Information Disclosure Vulnerability
    22Monitor
  • ← EarlierCVE-2024-28920Apr 9, 2024 · Secure Boot Security Feature Bypass Vulnerability
    31Monitor
  • Later →CVE-2024-29994May 14, 2024 · Microsoft Windows SCSI Class System File Elevation of Privilege Vulnerability
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Windows 10 Version 1809 for 32-bit Systems10.0.17763.5696 · KB5036896Microsoft (MSRC)
Windows 10 Version 1809 for ARM64-based Systems10.0.17763.5696 · KB5036896Microsoft (MSRC)
Windows 10 Version 1809 for x64-based Systems10.0.17763.5696 · KB5036896Microsoft (MSRC)
Windows 10 Version 21H2 for 32-bit Systems10.0.19044.4291 · KB5036892Microsoft (MSRC)
Windows 10 Version 21H2 for ARM64-based Systems10.0.19044.4291 · KB5036892Microsoft (MSRC)
Windows 10 Version 21H2 for x64-based Systems10.0.19044.4291 · KB5036892Microsoft (MSRC)
Windows 10 Version 22H2 for 32-bit Systems10.0.19045.4291 · KB5036892Microsoft (MSRC)
Windows 10 Version 22H2 for ARM64-based Systems10.0.19045.4291 · KB5036892Microsoft (MSRC)
Windows 10 Version 22H2 for x64-based Systems10.0.19045.4291 · KB5036892Microsoft (MSRC)
Windows 11 version 21H2 for ARM64-based Systems10.0.22000.2899 · KB5036894Microsoft (MSRC)
Windows 11 version 21H2 for x64-based Systems10.0.22000.2899 · KB5036894Microsoft (MSRC)
Windows 11 Version 22H2 for ARM64-based Systems10.0.22621.3447 · KB5036893Microsoft (MSRC)
Windows 11 Version 22H2 for x64-based Systems10.0.22621.3447 · KB5036893Microsoft (MSRC)
Windows 11 Version 23H2 for ARM64-based Systems10.0.22631.3447 · KB5036893Microsoft (MSRC)
Windows 11 Version 23H2 for x64-based Systems10.0.22631.3447 · KB5036893Microsoft (MSRC)
Windows Server 201910.0.17763.5696 · KB5036896Microsoft (MSRC)
Windows Server 2019 (Server Core installation)10.0.17763.5696 · KB5036896Microsoft (MSRC)
Windows Server 202210.0.20348.2402 · KB5036909Microsoft (MSRC)
Windows Server 2022 (Server Core installation)10.0.20348.2402 · KB5036909Microsoft (MSRC)
Windows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.830 · KB5036910Microsoft (MSRC)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:72024-05-03

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. CISA KEV+20 d
  3. First PoC+23 d
  4. TodayNov 12, 2026+947 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-2141256 days apartInternet Shortcut Files Security Feature Bypass VulnerabilityKEV
    92Now
  • CVE-2024-289200 days apartSecure Boot Security Feature Bypass Vulnerability
    31Monitor
  • CVE-2025-48003455 days apartWindows BitLocker Security Feature Bypass Vulnerability
    27Monitor
  • CVE-2024-43585182 days apartCode Integrity Guard Security Feature Bypass Vulnerability
    22Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-693 · Protection Mechanism Failure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records