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CVE-2018-8120

95
FAUCET Score

CVE-2018-8120 is an elevation of privilege vulnerability in the Windows Win32k component, affecting Windows 7 and Windows Server 2008. This flaw allows an attacker to gain elevated privileges due to improper handling of objects in memory. With a CVSS score of 7.0 (High), it has a high impact on confidentiality, integrity, and availability, requiring low privileges and high attack complexity. This vulnerability is actively exploited, with known ransomware campaigns utilizing it, and exploit code is available in Metasploit. It has garnered significant community and media attention, indicating its critical nature.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
r2CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:*
r2CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*

CVSS Data

CVSS version used by this source: 3.1

7.0HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
73.72%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Added to KEV · Mar 15, 2022
Metasploit: Windows SetImeInfoEx Win32k NULL Pointer Dereference · May 9, 2018
ExploitDB: EDB-45653 · Oct 22, 2018
This CVE's current EPSS score of 0.7372 is in the 100th percentile among its peer group of 1,516 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Windows 7 for 32-bit Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Windows 7 for x64-based Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for 32-bit Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for Itanium-Based Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for x64-based Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 R2 for x64-based Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
View patch

Vendor Advisories (1)

microsoft2018-May/CVE-2018-8120Important

Win32k Elevation of Privilege Vulnerability

May 8, 2018

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-8120
PatchVendor Advisory
exploit-db.com / exploits/45653
ExploitThird Party AdvisoryVDB Entry
securityfocus.com / bid/104034
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id/1040849
Broken LinkThird Party AdvisoryVDB Entry