Buffer overflow in Tenda W20e
CVE-2026-19824
A weakness has been identified in Tenda W20E 15.11.0.6(1068_1546_841)_CN_TDC. The affected element is the function ipMacBindListStore of the file /goform/addIpMacBind. Executing a manipulation of the argument IPMacBindRule can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.
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 (56.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.009 · change: +0.004
Affected products
- Tenda W20e — versions 15.11.0.6(1068_1546_841)_CN_TDC
Weakness classification (CWE)
References
- vuldb.com/vuln/389957 (technical-description, vdb-entry)
- vuldb.com/vuln/389957/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-19824 (third-party-advisory)
- vuldb.com/submit/869024 (third-party-advisory)
- github.com/paueger/mycve/blob/main/Tenda_W20E/5.md (exploit)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-19824?
- CVE-2026-19824 is a high-severity vulnerability in Tenda W20e, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-08-14.
- How severe is CVE-2026-19824?
- High severity. CVSS v3 base score is 8.8 out of 10.