Vulnerability · Published Jun 21, 2025 · Assigned by VulDB

CVE-2025-6399TOTOLINK X15 HTTP POST Request formIPv6Addr 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 37.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability, which was classified as critical, was found in TOTOLINK X15 1.0.0-B20230714.1105. Affected is an unknown function of the file /boafrm/formIPv6Addr of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to launch the attack 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-313392 | TOTOLINK X15 HTTP POST Request formIPv6Addr buffer overflow vdb-entry, technical-description
VDB-313392 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #597681 | TOTOLINK X15 V1.0.0-B20230714.1105 Buffer Overflow third-party-advisory
https://github.com/d2pq/cve/blob/main/616/19.md related
https://github.com/d2pq/cve/blob/main/616/19.md#poc exploit
https://www.totolink.net/ product