What’s Vulnerable › Vulnerabilities

CVE-2026-11522: Tenda W20E setPortMirror formSetPortMirror stack-based overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-08 · updated 2026-07-23
• Weakness: CWE-119

Description

A vulnerability was detected in Tenda W20E 15.11.0.6. This vulnerability affects the function formSetPortMirror of the file /goform/setPortMirror. Performing a manipulation of the argument portMirrorMirroredPorts results in stack-based buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.

Affected products

• Tenda W20E: 15.11.0.6

References

• https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/formSetPortMirror/portMirrorMirroredPorts.md
• https://vuldb.com/cve/CVE-2026-11522
• https://vuldb.com/submit/836469
• https://vuldb.com/vuln/369142
• https://vuldb.com/vuln/369142/cti
• https://www.tenda.com.cn/

Get alerted when CVE-2026-11522 or the next vulnerability affects your stack