High severity · published Oct 10, 2018
CVE-2018-8453
Microsoft Win32k Privilege Escalation Vulnerability
RansomwareIn wildKEV
7.8
CVSS
70%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)70.0% · higher than 99% of CVEs
Exploited in the wildYes
CISA KEVListed Jan 21, 2022
Federal remediation dueJul 21, 2022
Ransomware campaign useKnown
Affected products
Which versions
WI
Windows · Microsoft
32-bit Systems; Version 1607 for 32-bit Systems; Version 1607 for x64-based Systems; Version 1703 for 32-bit Systems; Version 1703 for x64-based Systems; Version 1709 for 32-bit Systems; +6 more · source: vendor
W1
Windows 10 Servers · Microsoft
version 1709 (Server Core Installation); version 1803 (Server Core Installation) · source: vendor
W7
Windows 7 · Microsoft
32-bit Systems Service Pack 1; x64-based Systems Service Pack 1 · source: vendor, NVD
W8
Windows 8.1 · Microsoft
32-bit systems; x64-based systems · source: vendor, NVD
WR
Windows RT 8.1 · Microsoft
Windows RT 8.1 · source: vendor, NVD
WS
Windows Server 2008 · Microsoft
32-bit Systems Service Pack 2; 32-bit Systems Service Pack 2 (Server Core installation); Itanium-Based Systems Service Pack 2; x64-based Systems Service Pack 2; x64-based Systems Service Pack 2 (Server Core installation) · source: vendor, NVD
WS
Windows Server 2008 R2 · Microsoft
Itanium-Based Systems Service Pack 1; x64-based Systems Service Pack 1; x64-based Systems Service Pack 1 (Server Core installation) · source: vendor
WS
Windows Server 2012 · Microsoft
(Server Core installation) · source: vendor, NVD
WS
Windows Server 2012 R2 · Microsoft
(Server Core installation) · source: vendor
WS
Windows Server 2016 · Microsoft
(Server Core installation) · source: vendor, NVD
WS
Windows Server 2019 · Microsoft
(Server Core installation) · source: vendor, NVD
W1
Windows 10 1507 · Microsoft
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-8453
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-8453
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
vdb-entry
http://www.securitytracker.com/id/1041828
x_refsource_MISC
https://securelist.com/cve-2018-8453-used-in-targeted-attack
x_refsource_CONFIRM
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8453
vdb-entry
http://www.securityfocus.com/bid/105467
x_refsource_MISC
http://packetstormsecurity.com/files/153669/Microsoft-Windows-NtUserSetWindowFNID-Win32k-User-Callback.html
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