CVE-2026-20789
Local privilege escalation in Intel PROSet/Wireless Windows drivers.
Is CVE-2026-20789 being exploited?
Not confirmed. CVE-2026-20789 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 0.11% probability of exploitation in the next 30 days.
How severe is CVE-2026-20789?
CVE-2026-20789 is rated High with a CVSS score of 8.4. 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-2026-20789?
Yes. A fix has been recorded for CVE-2026-20789. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-20789 affect?
CVE-2026-20789 affects Intel PROSet/Wireless WiFi Software for Windows, Intel Wireless device drivers. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-20789?
Apply vendor patch or uninstall/disable affected drivers.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local privilege escalation to SYSTEM via Intel PROSet/Wireless drivers, enabling local code execution and potential full system compromise.
Patch when possible
- affectedSee references
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.