Widely installed DirectX runtime; standard users can escalate to SYSTEM via HIGH-integrity installer.
CVE-2025-68623
DX installer lets standard user gain SYSTEM by replacing binaries during install.
Is CVE-2025-68623 being exploited?
Not confirmed. CVE-2025-68623 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.13% probability of exploitation in the next 30 days.
How severe is CVE-2025-68623?
CVE-2025-68623 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-68623?
Yes. A fix has been recorded for CVE-2025-68623. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-68623 affect?
CVE-2025-68623 affects Microsoft DirectX End-User Runtime Web Installer 9.29.1974.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-68623?
Patch now; apply Windows updates; restrict TEMP write; monitor installer processes
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local privilege escalation to SYSTEM via replacing downloaded binaries in %TEMP% during install.
Immediate action required