How severe is CVE-2026-26478?

CVE-2026-26478 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-26478 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-26478?

CVE-2026-26478 primarily affects Mobvoi Tichome Mini Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-26478?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-26478 have an EU (EUVD) identifier?

Yes. CVE-2026-26478 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9419.

When was CVE-2026-26478 published?

CVE-2026-26478 was published on 2026-03-04 and last updated on 2026-06-17.

CVE-2026-26478

CVE-2026-26478 is a critical-severity vulnerability in Mobvoi Tichome Mini Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9419
Weakness: CWE-78
Affected product: Mobvoi Tichome Mini Firmware
Published: 2026-03-04
Last modified: 2026-06-17

Description

A shell command injection vulnerability in Mobvoi Tichome Mini smart speaker 012-18853 and 027-58389 allows remote attackers to send a specially crafted UDP datagram and execute arbitrary shell code as the root account.

Frequently asked questions

What is CVE-2026-26478?: A shell command injection vulnerability in Mobvoi Tichome Mini smart speaker 012-18853 and 027-58389 allows remote attackers to send a specially crafted UDP datagram and execute arbitrary shell code as the root account.
How severe is CVE-2026-26478?: CVE-2026-26478 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-26478 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-26478?: CVE-2026-26478 primarily affects Mobvoi Tichome Mini Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-26478?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-26478 have an EU (EUVD) identifier?: Yes. CVE-2026-26478 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9419.
When was CVE-2026-26478 published?: CVE-2026-26478 was published on 2026-03-04 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:mobvoi:tichome_mini_firmware:012-18853:*:*:*:*:*:*:*
cpe:2.3:o:mobvoi:tichome_mini_firmware:027-58389:*:*:*:*:*:*:*

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