Buffer overflow in Tenda Ch22
CVE-2026-5604
A security flaw has been discovered in Tenda CH22 1.0.0.1. The impacted element is the function formCertLocalPrecreate of the file /goform/CertLocalPrecreate of the component Parameter Handler. Performing a manipulation of the argument sta…
Vulnerability class: Buffer Overflow
EPSS: 0.000 (6.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Tenda Ch22 — versions 1.0.0.1
- Tenda Ch22_firmware — versions 1.0.0.1
Weakness classification (CWE)
References
- VDB-355396 | Tenda CH22 Parameter CertLocalPrecreate formCertLocalPrecreate stack-based overflow (technical-description, Third Party Advisory, vdb-entry)
- VDB-355396 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required)
- Submit #785032 | Tenda CH22 V1.0.0.1 Stack-based Buffer Overflow (Third Party Advisory, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-5604?
- CVE-2026-5604 is a high-severity vulnerability in Tenda Ch22, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-04-05.
- How severe is CVE-2026-5604?
- High severity. CVSS v3 base score is 8.8 out of 10.