Vulnerability · Published Jun 21, 2025 · Assigned by VulDB

CVE-2025-6402TOTOLINK X15 HTTP POST Request formIpv6Setup buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in X15 from TOTOLINK. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.0%top 37.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in TOTOLINK X15 1.0.0-B20230714.1105. It has been declared as critical. This vulnerability affects unknown code of the file /boafrm/formIpv6Setup of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected products (as reported)

Vendor	Product	Versions
TOTOLINK	X15	1.0.0-B20230714.1105

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-313396 | TOTOLINK X15 HTTP POST Request formIpv6Setup buffer overflow vdb-entry, technical-description
VDB-313396 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #597693 | TOTOLINK X15 V1.0.0-B20230714.1105 Buffer Overflow third-party-advisory
https://github.com/d2pq/cve/blob/main/616/22.md exploit
https://www.totolink.net/ product