CVE-2026-113744: Tenda AC19 httpd Web Management Service SetFirewallCfg formSetFirewallCfg stack-based overflow

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-21 · updated 2026-10-28
Weakness: CWE-119

Description

A security vulnerability has been detected in Tenda AC19 16.03.10.07. The impacted element is the function formSetFirewallCfg of the file /goform/SetFirewallCfg of the component httpd Web Management Service. Such manipulation of the argument firewallEn leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.

Affected products

Tenda AC19: 16.03.10.07

References

https://github.com/henrythekingofuk/TendaCVE
https://vuldb.com/cve/CVE-2026-113744
https://vuldb.com/submit/1018542
https://vuldb.com/vuln/422925
https://vuldb.com/vuln/422925/cti
https://www.tenda.com.cn/

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