CVE-2026-10046
Out-of-bounds write in Napoca BIOS handler allows 20-byte overrun.
Is CVE-2026-10046 being exploited?
Not confirmed. CVE-2026-10046 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 0.12% probability of exploitation in the next 30 days.
How severe is CVE-2026-10046?
CVE-2026-10046 is rated High with a CVSS score of 8.5. 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-2026-10046?
Not known from our data. No patch reference has been recorded for CVE-2026-10046, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-10046 affect?
CVE-2026-10046 affects Bitdefender Napoca bare-metal hypervisor. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-10046?
Migrate to a supported hypervisor
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Guest real mode can trigger INT 0x15; writes up to 20 bytes into hypervisor heap, risking memory corruption or escape.
Monitor only