CVE-2026-85109CWE-119CWE-120

CVE-2026-85109

Critical · published September 3, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
65.3
In the wild
Unconfirmed
What it is

A vulnerability was determined in Tenda HG10 300001138. This issue affects the function formLogin of the file /boaform/formLogin of the component Boa Web Server. Executing a manipulation of the argument Username can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
9.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
EPSS
0.01096 · 65.3th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-09-03T18:17Z
References (6)
https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/HG10/bof-formLogin_username.md · [email protected]https://vuldb.com/cve/CVE-2026-85109 · [email protected]https://vuldb.com/submit/891994 · [email protected]https://vuldb.com/vuln/398315 · [email protected]https://vuldb.com/vuln/398315/cti · [email protected]https://www.tenda.com.cn/ · [email protected]
EPSS history
Timeline
  • 05 SEP 03:44Z
    EPSS moved — → 1%
    epss
  • 03 SEP 13:30Z
    Tenda HG10 Boa Web Server formLogin buffer overflow
    cvelistv5