Critical · CVSS 10.0CVE-2026-113744

Tenda AC19 httpd Web Management Service SetFirewallCfg formSetFirewallCfg stack-based overflowCVE-2026-113744

Answer in brief

CVE-2026-113744 records a Critical severity (CVSS 10.0) vulnerability in Tenda AC19 httpd Web Management Service SetFirewallCfg formSetFirewallCfg stack-based overflow. The current sources do not mark it as known exploited. The current feed maps Tenda/AC19 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 21, 2026Updated Oct 21, 2026Source checked Oct 21, 2026First seen by HOL Oct 21, 2026Material review Oct 21, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 10.0
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 10.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Tenda/AC19 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Tenda/AC19generic	16.03.10.07	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Tenda/AC19.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 21, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.