What is CVE-2025-29387?

CVE-2025-29387 is a high-severity vulnerability in Tenda Ac9, classified under Out-of-bounds Write. CVSS score: 7.1/10. Published 2025-03-14.

How severe is CVE-2025-29387?

High severity. CVSS v3 base score is 7.1 out of 10.

Buffer overflow in Tenda Ac9

CVE-2025-29387

In Tenda AC9 v1.0 V15.03.05.14_multi, the wanSpeed parameter of /goform/AdvSetMacMtuWan has a stack overflow vulnerability, which can lead to remote arbitrary code execution.

Vulnerability class: Buffer Overflow

EPSS: 0.005 (39.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H.

Affected products

Tenda Ac9 — versions 1.0
Tenda Ac9_firmware — versions 15.03.05.14
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write
CWE-121 — Stack-based Buffer Overflow

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-29387?: CVE-2025-29387 is a high-severity vulnerability in Tenda Ac9, classified under Out-of-bounds Write. CVSS score: 7.1/10. Published 2025-03-14.
How severe is CVE-2025-29387?: High severity. CVSS v3 base score is 7.1 out of 10.