Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2023-28252

Windows 10 Version 1809

Microsoft / Windows 10 Version 1809 · affected before 10.0.17763.4252

Severity
CVSS 7.8 · High
Confidence
Confirmed
Exploit status
Exploited in the wild
EPSS
49.0%
First observed
Last observed

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2023-28252 is a vulnerability affecting Microsoft Windows 10 Version 1809 and 21 other products. Windows Common Log File System Driver Elevation of Privilege Vulnerability

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is confirmed.

Who is affected?

Microsoft / Windows 10 Version 1809 affected before 10.0.17763.4252.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Vendor Product Affected Status
Microsoft Windows 10 Version 1809 Before 10.0.17763.4252 Affected
Microsoft Windows 10 Version 1809 Before 10.0.17763.4252 Affected
Microsoft Windows Server 2019 Before 10.0.17763.4252 Affected
Microsoft Windows Server 2019 (Server Core installation) Before 10.0.17763.4252 Affected
Microsoft Windows Server 2022 Before 10.0.20348.1668 Affected
Microsoft Windows 10 Version 20H2 Before 10.0.19042.2846 Affected
Microsoft Windows 11 version 21H2 Before 10.0.22000.1817 Affected
Microsoft Windows 10 Version 21H2 Before 10.0.19044.2846 Affected
Microsoft Windows 11 version 22H2 Before 10.0.22621.1555 Affected
Microsoft Windows 10 Version 22H2 Before 10.0.19045.2846 Affected
Microsoft Windows 10 Version 1507 Before 10.0.10240.19869 Affected
Microsoft Windows 10 Version 1607 Before 10.0.14393.5850 Affected
Microsoft Windows Server 2016 Before 10.0.14393.5850 Affected
Microsoft Windows Server 2016 (Server Core installation) Before 10.0.14393.5850 Affected
Microsoft Windows Server 2008 Service Pack 2 Before 6.0.6003.22015 Affected
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) Before 6.0.6003.22015 Affected
Microsoft Windows Server 2008 Service Pack 2 Before 6.0.6003.22015 Affected
Microsoft Windows Server 2008 R2 Service Pack 1 Before 6.1.7601.26466 Affected
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) Before 6.1.7601.26466 Affected
Microsoft Windows Server 2012 Before 6.2.9200.24216 Affected
Microsoft Windows Server 2012 (Server Core installation) Before 6.2.9200.24216 Affected
Microsoft Windows Server 2012 R2 Before 6.3.9600.20919 Affected
Microsoft Windows Server 2012 R2 (Server Core installation) Before 6.3.9600.20919 Affected
View vendor advisory (opens in new tab)
Published
11 Apr 2023
Exploitation Reported
11 Apr 2023
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None

Tags

cisa microsoft windows metasploit ransomware malware

CVE References

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CISA

Recorded 11 Apr 2023

Independent exploitation attestation added to the KEV Intelligence record.

Used in malware

CISA

Recorded 11 Apr 2023

Malware families have been linked to exploitation of this CVE.

Proof of concept available

GitHub

Recorded 27 Jun 2023

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

Learn about Pro API access
Source Added
CISA First 2023-04-11 00:00 UTC
Tenable Blog 2026-06-02 14:21 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
0
User-Agents
0

Raw values available in Pro and Enterprise.

Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

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

EPSS

49.0%

Recent mention · Daily CyberSecurity

Large-Scale Malvertising Network Floods Asia-Pacific Social Media Platforms

Broad Malvertising Infrastructure Reuses Templates at Scale Security researchers recently uncovered a massive underground fraud network stretching across The post Large-Scale Malvertising Network Floods Asia-Pacific Social Media Platforms appeared first on Daily...

Read full advisory

All Mentions

Recent mention · Daily CyberSecurity

Large-Scale Malvertising Network Floods Asia-Pacific Social Media Platforms

Daily CyberSecurity · 05 Jun 2026

Broad Malvertising Infrastructure Reuses Templates at Scale Security researchers recently uncovered a massive underground fraud network stretching across The post Large-Scale Malvertising Network Floods Asia-Pacific Social Media Platforms appeared first on Daily CyberSecurity. Related posts: Microsoft’s April 2023 Patch Tuesday fixes exploited CVE-2023-28252 0-day vulnerability CVE-2023-20864: Critical vulnerability in VMware Aria Operations for Logs Russia-Linked Hackers Exploit Windows Zero-Day, Deploy “GooseEgg” to Hijack Networks

Recent mention · Tenable Blog

Inside the customer environment: Where threat actors, vulnerabilities, and exposed assets intersect

Tenable Blog · 27 May 2026

Tenable Research has developed a graph-based model linking 600+ threat groups to real-world customer exposures. It reveals which vulnerabilities sit at the intersection of severity, active exploitation, and organizational risk.Key takeawaysThe "patch everything" strategy is dead: Vulnerability prioritization based on exploitation risk offers a path forward. A directed graph model linking 600+ threat actors to vulnerabilities in 7,800 customer environments reveals that 68% of organizations carry at least one CVE previously exploited by a named adversary, and 321 tracked threat groups can...

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

cve_2023_28252_clfs_driver

metasploit · Created Unknown

Metasploit module for CVE-2023-28252

Timeline

From disclosure to observed exploitation

  1. KEV confirmed by Tenable Blog

    Exploitation attested by an external source

  2. Metasploit module available

    Exploit module available

  3. Public PoC available

    Public proof-of-concept code published

  4. CVE published

    Vulnerability disclosed publicly

  5. Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  6. First public exploitation report

    Exploit observed in malware

  7. CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2023-28252

Free JSON includes basic KEV fields
{
  "cve_id": "CVE-2023-28252",
  "confidence": "Confirmed",
  "cvss_score": 7.8,
  "cvss_estimated": false,
  "epss_score": 0.48973,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

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