CVE-2025-20105
UEFI SMM input validation flaw enables local privilege escalation.
Is CVE-2025-20105 being exploited?
Not confirmed. CVE-2025-20105 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-2025-20105?
CVE-2025-20105 is rated High with a CVSS score of 8.7. 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-2025-20105?
Yes. A fix has been recorded for CVE-2025-20105. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-20105 affect?
CVE-2025-20105 affects Intel-based systems with affected UEFI SMM modules. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-20105?
Update BIOS/UEFI to latest vendor firmware
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local attacker with physical access can escalate to high privileges via SMM, enabling code execution and data access.
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.