CVE-2024-21302

Protected-data exposure via trusted VBS file rollback

Published Aug 8, 2024 · Updated Jul 10, 2025

Improper access control in Microsoft Windows VBS allows local users to expose protected data by rolling back system files. The secure-kernel update trust path accepts older, vulnerable Microsoft-signed VBS binaries in place of current files, undoing prior fixes. Administrator privileges and a VBS-capable device are required; successful rollback bypasses VBS protections and exposes protected data.

CVSS severity6.7
Medium
EPSS probability1.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Microsoft Windows VBS allows local users to expose protected data by rolling back system files. The secure-kernel update trust path accepts older, vulnerable Microsoft-signed VBS binaries in place of current files, undoing prior fixes. Administrator privileges and a VBS-capable device are required; successful rollback bypasses VBS protections and exposes protected data.

The record

CVE
CVE-2024-21302
Published
Aug 8, 2024
Updated
Jul 10, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-284, T1562.001
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.10240.0 <10.0.10240.21073

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.21073
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.7558
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.8246
Microsoft · Windows 11, version 24H2version=10.0.26100.0 <10.0.26100.3775
Microsoft · Windows 11 version 21H2version=10.0.22000.0 <10.0.19044.5737
Microsoft · Windows 10 Version 21H2version=10.0.19044.0 <10.0.19044.4780
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.1551
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.8246
Microsoft · Windows 11 Version 22H3version=10.0.22631.0 <10.0.22631.5189
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.5737
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.7558
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.5189
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.5189
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.8246
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.3453
Microsoft · Windows 10 Version 1809version=10.0.17763.0 <10.0.17763.7558

Published CVSS scores

6.7Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1562.001Disable or Modify Tools

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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