CVE-2026-86300

Tenda AC9 Web Management R7WebsSecurityHandler improper authentication

A flaw has been found in Tenda AC9 15.03.05.14. This impacts the function R7WebsSecurityHandler of the component Web Management. This manipulation causes improper authentication. The attack may be initiated remotely. The exploit has been published and may be used.

Affected

Tenda · AC9

CVSS v4.0 VULDB

5.5 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULDB

7.3 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS v2.0 VULDB

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

0.84% chance of exploitation in the next 30 days, 57th percentile

Published

2026-09-07

Updated

2026-09-08

Proof-of-concept exploits (1)

• limou89/somevul/blob/main/Tenda_AC9_fast_setting_wifi_set_Unauth_Password.md

References

• CVE Record
• NVD entry

Related

• CVE-2026-86299
• CVE-2026-90881