Vulnerability · Published Oct 6, 2025 · Assigned by VulDB

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

High 8.8

In plain English

A high-severity stack buffer overflow in AC18 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.8%top 42.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
Tenda	AC18	15.03.05.19(6318)

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-327208 | Tenda AC18 fast_setting_pppoe_set stack-based overflow vdb-entry, technical-description
VDB-327208 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #664527 | Tenda AC18 V15.03.05.19(6318) Buffer Overflow third-party-advisory
https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/AC18/fast_setting_pppoe_set.md exploit
https://www.tenda.com.cn/ product