CVE-2025-11325: Tenda AC18 fast_setting_pppoe_set stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-10-06 · updated 2026-10-09
Weakness: CWE-119

Description

A security flaw has been discovered in Tenda AC18 15.03.05.19(6318). Affected by this issue is some unknown functionality of the file /goform/fast_setting_pppoe_set. Performing a manipulation of the argument Username results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.

Affected products

Tenda AC18: 15.03.05.19(6318)

References

https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/AC18/fast_setting_pppoe_set.md
https://vuldb.com/?ctiid.327208
https://vuldb.com/?id.327208
https://vuldb.com/?submit.664527
https://www.tenda.com.cn/

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