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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (44.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.000
Affected products
- Tenda Ac9 — versions 1.0
- Tenda Ac9 Firmware — versions 15.03.05.14
Weakness classification (CWE)
References
- github.com/shuqi233/loophole/blob/main/Tenda AC9/AdvSetMacMtuWan2.md (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.