CVE-2026-86300 json
Tenda AC9 Web Management R7WebsSecurityHandler improper authentication
published 2026-09-07 2 mo ago modified 2026-09-08 2 mo ago also EUVD-2026-72351
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/limou89/somevul/blob/main/Tenda_AC9_getProduct_Info_Disclosure.md referenced PoC, tagged "exploit" by a source, unverified
- github.com https://github.com/limou89/somevul/blob/main/Tenda_AC9_fast_setting_wifi_set_Unauth_Password.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS: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 |
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R |
| CNA | 3.0 | 7.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R |
| CNA | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR |
| CNA | 4.0 | 5.5 | CVSS: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 |
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| CNA | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Tenda AC9
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
github.com
/limou89/somevul/blob/main/Tenda_AC9_getProduct_Info_Disclosure.md
related, exploit
-
github.com
/limou89/somevul/blob/main/Tenda_AC9_fast_setting_wifi_set_Unauth_Password.md
exploit
-
vuldb.com
/vuln/399464
vdb-entry, technical-description
-
vuldb.com
/vuln/399464/cti
signature, permissions-required
-
vuldb.com
/cve/CVE-2026-86300
third-party-advisory
-
vuldb.com
/submit/906606
third-party-advisory
-
vuldb.com
/submit/906607
third-party-advisory
-
vuldb.com
/submit/906608
third-party-advisory
-
tenda.com.cn
/
product
Sources
- CVE List CVE-2026-86300
- NVD CVE-2026-86300
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.