Security readout for executives and security teams
CVE-2018-8589 is a Windows privilege escalation flaw in Win32k.sys. It does not appear to be a direct remote entry point, but a low-privileged attacker with local code execution could gain elevated control. CISA KEV listing indicates known exploitation, so affected legacy Windows systems should be treated as urgent. Exposure is likely where listed Windows 7, Windows Server 2008, or Windows Server 2008 R2 systems remain in use without the relevant Microsoft remediation. The CVSS vector indicates local access is required, so this is most concerning after phishing, malware execution, or another initial foothold. High priority. This is an exploited privilege escalation issue affecting older Windows platforms. It is most dangerous when combined with another foothold, because it can turn limited access into high-impact system control. Prioritize confirmed affected assets and legacy systems that cannot be promptly remediated. Mitigation focus: Apply Microsoft guidance for CVE-2018-8589 on affected systems.; Prioritize systems listed in CISA KEV exposure scope.; Retire or isolate affected legacy Windows systems where remediation is unavailable..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Privilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-8589 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8589CVE reference · x_refsource_CONFIRM
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8589CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.