What is CVE-2025-44899?

CVE-2025-44899 is a critical-severity vulnerability in Tenda Rx3, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-05-06.

How severe is CVE-2025-44899?

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

Buffer overflow in Tenda Rx3

CVE-2025-44899

There is a stack overflow vulnerability in Tenda RX3 V1.0br_V16.03.13.11 In the fromSetWifiGusetBasic function of the web url /goform/ WifiGuestSet, the manipulation of the parameter shareSpeed leads to stack overflow.

Vulnerability class: Buffer Overflow

Published 2025-05-06 · 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: 0.004 (35.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Tenda Rx3 — versions 1.0
Tenda Rx3 Firmware — versions 16.03.13.11_multi

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

github.com/faqiadegege/IoTVuln/blob/main/tenda_RX3_fromSetWifiGusetBasic_shareS… (Third Party Advisory)

Frequently asked questions

What is CVE-2025-44899?: CVE-2025-44899 is a critical-severity vulnerability in Tenda Rx3, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-05-06.
How severe is CVE-2025-44899?: Critical severity. CVSS v3 base score is 9.8 out of 10.