Buffer overflow in Totolink X15

CVE-2025-5739

A vulnerability classified as critical has been found in TOTOLINK X15 1.0.0-B20230714.1105. This affects an unknown part of the file /boafrm/formSaveConfig of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.063 (93.3th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-5739: rose from 0.053 to 0.063.

EPSS over last 30 days · oldest: 0.053 · newest: 0.063 · change: +0.009

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-5739?
CVE-2025-5739 is a high-severity vulnerability in Totolink X15, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-06-06.
How severe is CVE-2025-5739?
High severity. CVSS v3 base score is 8.8 out of 10.