CVE-2023-36731
Win32k Elevation of Privilege Vulnerability
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Win32k Elevation of Privilege Vulnerability
Vulnerabilidad de elevación de privilegios en Win32k
This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the BLTRECORD::bStretch function in the win32kfull driver. The issue results from the lack of proper validation of user-supplied bitmaps prior to processing them. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.
*Credits:
Marcin Wiazowski
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-06-26 CVE Reserved
- 2023-10-10 CVE Published
- 2024-08-02 CVE Updated
- 2024-11-23 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36731 | 2024-05-29 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Microsoft Search vendor "Microsoft" | Windows 10 1507 Search vendor "Microsoft" for product "Windows 10 1507" | < 10.0.10240.20232 Search vendor "Microsoft" for product "Windows 10 1507" and version " < 10.0.10240.20232" | x64 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 1507 Search vendor "Microsoft" for product "Windows 10 1507" | < 10.0.10240.20232 Search vendor "Microsoft" for product "Windows 10 1507" and version " < 10.0.10240.20232" | x86 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 1607 Search vendor "Microsoft" for product "Windows 10 1607" | < 10.0.14393.6351 Search vendor "Microsoft" for product "Windows 10 1607" and version " < 10.0.14393.6351" | x64 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 1607 Search vendor "Microsoft" for product "Windows 10 1607" | < 10.0.14393.6351 Search vendor "Microsoft" for product "Windows 10 1607" and version " < 10.0.14393.6351" | x86 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 1809 Search vendor "Microsoft" for product "Windows 10 1809" | < 10.0.17763.4974 Search vendor "Microsoft" for product "Windows 10 1809" and version " < 10.0.17763.4974" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 21h2 Search vendor "Microsoft" for product "Windows 10 21h2" | < 10.0.19041.3570 Search vendor "Microsoft" for product "Windows 10 21h2" and version " < 10.0.19041.3570" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 22h2 Search vendor "Microsoft" for product "Windows 10 22h2" | < 10.0.19045.3570 Search vendor "Microsoft" for product "Windows 10 22h2" and version " < 10.0.19045.3570" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 11 21h2 Search vendor "Microsoft" for product "Windows 11 21h2" | < 10.0.22000.2538 Search vendor "Microsoft" for product "Windows 11 21h2" and version " < 10.0.22000.2538" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 11 22h2 Search vendor "Microsoft" for product "Windows 11 22h2" | < 10.0.22621.2428 Search vendor "Microsoft" for product "Windows 11 22h2" and version " < 10.0.22621.2428" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | r2 Search vendor "Microsoft" for product "Windows Server 2008" and version "r2" | sp1, x64 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | r2 Search vendor "Microsoft" for product "Windows Server 2008" and version "r2" | sp2 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012" | - | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012" | r2 Search vendor "Microsoft" for product "Windows Server 2012" and version "r2" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016" | - | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2019 Search vendor "Microsoft" for product "Windows Server 2019" | - | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2022 Search vendor "Microsoft" for product "Windows Server 2022" | - | - |
Affected
| ||||||