Buffer overflow in Tenda Ch22
CVE-2026-15543
A vulnerability was found in Tenda CH22 1.0.0.1. This impacts the function formCertListInfo of the file /goform/CertListInfo. The manipulation of the argument Name results in buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.009 (57.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Tenda Ch22 — versions 1.0.0.1
Weakness classification (CWE)
References
- vuldb.com/vuln/377893 (technical-description, vdb-entry)
- vuldb.com/vuln/377893/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-15543 (third-party-advisory)
- vuldb.com/submit/855077 (third-party-advisory)
- candle-throne-f75.notion.site/Tenda-CH22-formCertListInfo-377df0aa11858088aabae… (exploit)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-15543?
- CVE-2026-15543 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 2026-07-13.
- How severe is CVE-2026-15543?
- High severity. CVSS v3 base score is 8.8 out of 10.