Vulnerability in Microsoft Windows 7
CVE-2018-8589
An elevation of privilege vulnerability exists when Windows improperly handles calls to Win32k.sys, aka "Windows Win32k Elevation of Privilege Vulnerability." This affects Windows Server 2008, Windows 7, Windows Server 2008 R2.
EPSS: 0.030 (86.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Windows 7 — versions 32-bit Systems Service Pack 1, x64-based Systems Service Pack 1
- Microsoft Windows_7
- Microsoft Windows Server 2008 — versions 32-bit Systems Service Pack 2, 32-bit Systems Service Pack 2 (Server Core installation), Itanium-Based Systems Service Pack 2
- Microsoft Windows_server_2008 — versions r2
- Microsoft Windows Server 2008 R2 — versions Itanium-Based Systems Service Pack 1, x64-based Systems Service Pack 1, x64-based Systems Service Pack 1 (Server Core installation)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK, Broken Link)
- secure@microsoft.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2018-8589?
- CVE-2018-8589 is a high-severity vulnerability in Microsoft Windows 7. CVSS score: 7.8/10. Published 2018-11-14.
- How severe is CVE-2018-8589?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2018-8589 known to be exploited?
- Yes. CVE-2018-8589 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-23), indicating it is being actively exploited. 15 public proof-of-concept repositories are indexed.