CVE-2023-29336 (GCVE-0-2023-29336)

Vulnerability from cvelistv5 – Published: 2023-05-09 17:03 – Updated: 2025-10-21 23:05
VLAI CISA KEVIntel
Title
Win32k Elevation of Privilege Vulnerability
Summary
Win32k Elevation of Privilege Vulnerability
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows 10 Version 1507 Affected: 10.0.10240.0 , < 10.0.10240.19926 (custom)
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Microsoft Windows 10 Version 1607 Affected: 10.0.14393.0 , < 10.0.14393.5921 (custom)
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Microsoft Windows Server 2016 Affected: 10.0.14393.0 , < 10.0.14393.5921 (custom)
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Microsoft Windows Server 2016 (Server Core installation) Affected: 10.0.14393.0 , < 10.0.14393.5921 (custom)
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Microsoft Windows Server 2008 Service Pack 2 Affected: 6.0.6003.0 , < 6.0.6003.22070 (custom)
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Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) Affected: 6.0.6003.0 , < 6.0.6003.22070 (custom)
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Microsoft Windows Server 2008 Service Pack 2 Affected: 6.0.6003.0 , < 6.0.6003.22070 (custom)
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Microsoft Windows Server 2008 R2 Service Pack 1 Affected: 6.1.7601.0 , < 6.1.7601.26519 (custom)
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Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) Affected: 6.1.7601.0 , < 6.1.7601.26519 (custom)
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Microsoft Windows Server 2012 Affected: 6.2.9200.0 , < 6.2.9200.24266 (custom)
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Microsoft Windows Server 2012 (Server Core installation) Affected: 6.2.9200.0 , < 6.2.9200.24266 (custom)
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Microsoft Windows Server 2012 R2 Affected: 6.3.9600.0 , < 6.3.9600.20969 (custom)
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Microsoft Windows Server 2012 R2 (Server Core installation) Affected: 6.3.9600.0 , < 6.3.9600.20969 (custom)
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Date Public
2023-05-09 07:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: fe98d2c9-f512-4f9d-82bc-7bf85cc8d3b4

Vulnerability ID: CVE-2023-29336

Status: Confirmed

Status Updated: 2023-05-09 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2023-05-09
Asserted: 2023-05-09
Scope
Notes: KEV entry: Microsoft Win32K Privilege Escalation Vulnerability | Affected: Microsoft / Win32k | Description: Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation up to SYSTEM privileges. | Required action: Apply updates per vendor instructions. | Due date: 2023-05-30 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-29336; https://nvd.nist.gov/vuln/detail/CVE-2023-29336
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-416
Feed CISA Known Exploited Vulnerabilities Catalog
Product Win32k
Due Date 2023-05-30
Date Added 2023-05-09
Vendorproject Microsoft
Vulnerabilityname Microsoft Win32K Privilege Escalation Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:26 UTC | Updated: 2026-02-06 07:17 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 40b40806-ee65-4e53-a403-cf2a880d3de3

Vulnerability ID: CVE-2023-29336

Status: Confirmed

Status Updated: 2023-05-09 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2023-05-09
Asserted: 2023-05-09
Scope
Notes: KEVIntel entry: Win32k Elevation of Privilege Vulnerability | Affected: Microsoft / Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation) | CVSS: 7.8 (HIGH) | EPSS: 0.40919 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Win32k Elevation of Privilege Vulnerability
Vendor Microsoft
Product Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Added Date 2023-05-09T00:00:00.000Z
Cvss Score 7.8
Epss Score 0.40919
Cvss Severity HIGH
Epss Percentile 0.98477
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:05 UTC | Updated: 2026-06-23 14:05 UTC
Show details on NVD website
To clipboard 

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  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.