Critical severity · published Oct 21, 2026
CVE-2026-113744
Tenda AC19 httpd Web Management Service SetFirewallCfg formSetFirewallCfg stack-based overflow
10.0
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
AC19 · Tenda
16.03.10.07 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-113744
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-113744
github.com
https://github.com/henrythekingofuk/TendaCVE
vuldb.com
https://vuldb.com/cve/CVE-2026-113744
vuldb.com
https://vuldb.com/submit/1018542
vuldb.com
https://vuldb.com/vuln/422925
vuldb.com
https://vuldb.com/vuln/422925/cti
www.tenda.com.cn
https://www.tenda.com.cn/