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CVE-2026-113744

10, critical

Tenda AC19 Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
10, critical critical CVSS v3.1
EPSS, next 30 days
n/a
Exploitation
No public evidence
Published
21 Oct 2026today

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.

Details

Vendor
Tenda
Product
AC19
Weakness
CWE-119 (opens in a new tab)
Status
Received
Updated
21 Oct 2026
Assigner
cna@vuldb.com

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References 6

Other references 6

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Tenda CVEs

Every Tenda CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2021-31755 Tenda AC11 Router Stack Buffer Overflow Vulnerability KEV EPSS 87% 9.8, critical
  • CVE-2020-10987 Tenda AC1900 Router AC15 Model Remote Code Execution Vulnerability KEV EPSS 80% 9.8, critical
  • CVE-2018-14558 Tenda AC7, AC9, and AC10 Routers Command Injection Vulnerability KEV EPSS 9% 9.8, critical

Beyond this page

Is CVE-2026-113744 in your network?

This page tells you how dangerous CVE-2026-113744 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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    Find it before attackers do

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 21 Oct 2026, not the live upstream state.