VulnerabilityAnalyzed
CVE-2026-4252
A vulnerability was identified in Tenda AC8 16.03.50.11.
HIGH 8.9EPSS 1.26%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability was identified in Tenda AC8 16.03.50.11. Affected by this issue is the function check_is_ipv6 of the component IPv6 Handler. The manipulation leads to reliance on ip address for authentication. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
- CVSS 4.0
- 8.9 HIGHCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 1.26% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287, CWE-291
- Affected
- tenda/ac8 firmware
- Source
- cna@vuldb.com
References
- https://github.com/digitalandrew/tenda_ac8_v5/blob/main/poc_ipv6_auth_bypass.pyExploit
- https://vuldb.com/?ctiid.351210Permissions Required, VDB Entry
- https://vuldb.com/?id.351210Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.771759Exploit, Third Party Advisory, VDB Entry
- https://www.tenda.com.cn/Product
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.