What is CVE-2025-29135?

CVE-2025-29135 is a critical-severity vulnerability in Tenda Ac7, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-03-24.

How severe is CVE-2025-29135?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Tenda Ac7

CVE-2025-29135

A stack-based buffer overflow vulnerability in Tenda AC7 V15.03.06.44 allows a remote attacker to execute arbitrary code through a stack overflow attack using the security parameter of the formWifiBasicSet function.

Vulnerability class: Buffer Overflow

Published 2025-03-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (65.1th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: +0.000

Affected products

Tenda Ac7 — versions 1.0
Tenda Ac7 Firmware — versions 15.03.06.44

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

github.com/Raining-101/IOT_cve/blob/main/a7_formWifiBasic_Setsecurity_stackover… (Exploit)
gist.github.com/Raining-101/1651dd3901efdbb38d94a156a54bbc62 (Third Party Advisory)

Frequently asked questions

What is CVE-2025-29135?: CVE-2025-29135 is a critical-severity vulnerability in Tenda Ac7, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-03-24.
How severe is CVE-2025-29135?: Critical severity. CVSS v3 base score is 9.8 out of 10.