CVE-2026-86300 Details
Description
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.
An improper authentication vulnerability has been identified in the Tenda AC9 dual-band Wi-Fi router, specifically in the web management interface. This issue affects firmware versions 15.03.05.14 and 15.03.05.16. The vulnerability arises in the 'R7WebsSecurityHandler' component, which manages authentication for web requests. The flaw allows remote attackers to bypass authentication checks on certain endpoints, enabling unauthorized access to sensitive functions.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 7, 2026CISA-ADP
Assessed Sep 8, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/limou89/somevul/blob/main/Tenda_AC9_getProduct_Info_Disclosure.md | CISA-ADP | ExploitTechnical Description |
| https://github.com/limou89/somevul/blob/main/Tenda_AC9_fast_setting_wifi_set_Unauth_Password.md | [email protected] | ExploitTechnical Description |
| https://github.com/limou89/somevul/blob/main/Tenda_AC9_getProduct_Info_Disclosure.md | [email protected] | ExploitTechnical Description |
| https://vuldb.com/cve/CVE-2026-86300 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/906606 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/submit/906607 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/submit/906608 | [email protected] | Permission Required |
| https://vuldb.com/vuln/399464 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/399464/cti | [email protected] | AdvisoryPermission Required |
| https://www.tenda.com.cn/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Tenda AC9 | V15.03.05.14 V15.03.05.16 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 8, 2026 | CVE Modified | CISA-ADP |
| Sep 7, 2026 | New CVE Received | [email protected] |
Volerion