CVE-2026-2909CWE-119CWE-121

Tenda HG9 Diagnostic Ping Endpoint formPing stack-based overflow

High · published February 22, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
66.5
In the wild
Unconfirmed
What it is

A vulnerability was detected in Tenda HG9 300001138. This affects an unknown part of the file /boaform/formPing of the component Diagnostic Ping Endpoint. Performing a manipulation of the argument pingAddr results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
EPSS
0.01146 · 66.5th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2026-02-22T02:02Z
EPSS history
Timeline
  • 22 FEB 02:02Z
    Tenda HG9 Diagnostic Ping Endpoint formPing stack-based overflow
    cvelistv5