CVE-2023-29336
Microsoft Win32k: Privilege Escalation
As of , CVE-2023-29336 in Microsoft Win32k is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.
- Exploited
- Yes: CISA listed it on 9 May 2023
- US federal deadline
- 30 May 202321 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.41Higher than 98% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- No score that dayThe EPSS file of the day CISA listed it has no score for it.
- Public exploit
- 1 Exploit-DB entry
- Fix
- Vendor advice: msrc.microsoft.comLinks below, from CISA's entry.
What CISA says to do
Apply updates per vendor instructions.
CISA's required action
What the flaw is
Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation up to SYSTEM privileges.
CISA's description
Win32k Elevation of Privilege Vulnerability
The CVE record's description, from microsoft
- CVE published
- 9 May 2023
- Assigned by
- microsoft
- CVSS
- 7.8 High (CVSS 3.1, from the CNA)
- CWE-416
- Use After Free
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- total
Timeline
- The CVE record was published.
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
- Exploit-DB published an exploit (EDB-ID 52301).
Public exploits
Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.
- Exploit-DB: Microsoft Windows Server 2016 - Win32k Elevation of PrivilegeEDB-ID 52301, 25 May 2025
Win32k: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2014-4113Privilege Escalation | Microsoft Win32k | Patch this weekMetasploit module; EPSS 0.87; verified Exploit-DB entry | 0.87 | ||
| CVE-2018-8120Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; Metasploit module; EPSS 0.73; verified Exploit-DB entry | 0.73 | ||
| CVE-2015-1701Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; Metasploit module; EPSS 0.56; verified Exploit-DB entry | 0.56 | ||
| CVE-2018-8453Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; Metasploit module; EPSS 0.70; verified Exploit-DB entry | 0.70 | ||
| CVE-2013-3660Privilege Escalation | Microsoft Win32k | Patch this weekMetasploit module; verified Exploit-DB entry | 0.39 | ||
| CVE-2022-21882Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; Metasploit module; EPSS 0.59 | 0.59 | ||
| CVE-2019-1458Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; Metasploit module; EPSS 0.74 | 0.74 | ||
| CVE-2021-1732Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; Metasploit module; EPSS 0.78 | 0.78 | ||
| CVE-2019-0808Privilege Escalation | Microsoft Win32k | Patch this weekMetasploit module; EPSS 0.53 | 0.53 | ||
| CVE-2020-1054Privilege Escalation | Microsoft Win32k | Patch this weekMetasploit module; EPSS 0.54 | 0.54 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org