What is CVE-2024-25756?

CVE-2024-25756 is a high-severity vulnerability in Tenda Ac9, classified under Stack-based Buffer Overflow. CVSS score: 8.0/10. Published 2024-02-22.

How severe is CVE-2024-25756?

High severity. CVSS v3 base score is 8.0 out of 10.

Is CVE-2024-25756 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Tenda Ac9

CVE-2024-25756

A Stack Based Buffer Overflow vulnerability in Tenda AC9 v.3.0 with firmware version v.15.03.06.42_multi allows a remote attacker to execute arbitrary code via the formWifiBasicSet function.

Vulnerability class: Buffer Overflow

Published 2024-02-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (45.2th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Tenda Ac9
Tenda Ac9 Firmware — versions 5.03.06.42_multi

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

github.com/TimeSeg/IOT_CVE/blob/main/tenda/AC9V3/0218/formWifiBasicSet.md (Third Party Advisory)

Frequently asked questions

What is CVE-2024-25756?: CVE-2024-25756 is a high-severity vulnerability in Tenda Ac9, classified under Stack-based Buffer Overflow. CVSS score: 8.0/10. Published 2024-02-22.
How severe is CVE-2024-25756?: High severity. CVSS v3 base score is 8.0 out of 10.
Is CVE-2024-25756 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.