Actively exploited · Published Nov 14, 2018 · Assigned by microsoft
CVE-2018-8589
High 7.8 Exploited
In plain English
A high-severity security flaw in Windows 7 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on May 23, 2022). The chance it is exploited in the next 30 days is estimated at 3.0% (higher than 88% of all known vulnerabilities). Apply updates per vendor instructions.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)3.0%top 12.5% of all CVEs
Exploited in the wildYesCISA KEV since May 23, 2022
Attack toolingNoneno public tooling known
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by Jun 13, 2022.
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Server 2008 | 32-bit Systems Service Pack 232-bit Systems Service Pack 2 (Server Core installation)Itanium-Based Systems Service Pack 2x64-based Systems Service Pack 2x64-based Systems Service Pack 2 (Server Core installation) |
| Microsoft | Windows 7 | 32-bit Systems Service Pack 1x64-based Systems Service Pack 1 |
| Microsoft | Windows Server 2008 R2 | Itanium-Based Systems Service Pack 1x64-based Systems Service Pack 1x64-based Systems Service Pack 1 (Server Core installation) |
References
- 105796 vdb-entry, x_refsource_BID
- 1042140 vdb-entry, x_refsource_SECTRACK
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8589 x_refsource_CONFIRM
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8589 government-resource