What is CVE-2026-77031?

CVE-2026-77031 is a high-severity vulnerability in Tenda Ch22, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.4/10. Published 2026-08-20.

How severe is CVE-2026-77031?

High severity. CVSS v3 base score is 7.4 out of 10.

RCE in Tenda Ch22

CVE-2026-77031

A vulnerability has been found in Tenda CH22 1.0.0.1. The affected element is the function formcreateFileName of the file /goform/formcreateFileName. The manipulation of the argument fileNameMit leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L.

Affected products

Tenda Ch22 — versions 1.0.0.1

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-77031?: CVE-2026-77031 is a high-severity vulnerability in Tenda Ch22, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.4/10. Published 2026-08-20.
How severe is CVE-2026-77031?: High severity. CVSS v3 base score is 7.4 out of 10.