CVE-2018-8453
Microsoft Win32k: Privilege Escalation
As of , CVE-2018-8453 in Microsoft Win32k is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.
- Exploited
- Yes: CISA listed it on 21 January 2022
- US federal deadline
- 21 July 2022181 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Known
- EPSS score
- 0.70Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- Not availableCISA listed it before 4 February 2022, where the EPSS files we read begin.
- Public exploit
- 1 Metasploit module and 1 Exploit-DB entry (1 verified)
- Fix
- No vendor link in CISA's entry
What CISA says to do
Apply updates per vendor instructions.
CISA's required action
What the flaw is
Microsoft Windows Win32k contains a vulnerability that allows an attacker to escalate privileges.
CISA's description
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
The CVE record's description, from microsoft
- CVE published
- 10 October 2018
- Assigned by
- microsoft
- CVSS
- 7.8 High (CVSS 3.1, from CISA-ADP)
- CWE-404
- Improper Resource Shutdown or Release
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- total
Timeline
- The CVE record was published.
- Exploit-DB published an exploit (EDB-ID 47134).
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Public exploits
Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.
- Metasploit: Windows NtUserSetWindowFNID Win32k User Callbackexploit module, rank manual
- Exploit-DB: Microsoft Windows - NtUserSetWindowFNID Win32k User Callback Privilege Escalation (Metasploit)EDB-ID 47134, verified by Exploit-DB, 17 July 2019
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-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 | ||
| CVE-2016-7255Privilege Escalation | Microsoft Win32k | Patch this weekRansomware use; EPSS 0.81 | 0.81 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org