CVE-2026-26478
Remote root code execution on Mobvoi Tichome Mini via UDP datagram
Is CVE-2026-26478 being exploited?
Not confirmed. CVE-2026-26478 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 2.0% probability of exploitation in the next 30 days.
How severe is CVE-2026-26478?
CVE-2026-26478 is rated Critical with a CVSS score of 9.8. 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-2026-26478?
Not known from our data. No patch reference has been recorded for CVE-2026-26478, 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-2026-26478 affect?
CVE-2026-26478 affects Mobvoi Tichome Mini 012-18853, Mobvoi Tichome Mini 027-58389. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-26478?
Monitor & isolate devices; await firmware update
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote root shell via crafted UDP datagram; attacker can take full control of the device
Monitor only