QwikSec

Security Database

CVE

CWE

Training

CVE-2026-8137

Published: May 8, 2026

Modified: May 8, 2026

PUBLISHED

CVSS v3.1

8.8

HIGH

Description

A vulnerability has been found in Totolink X5000R 9.1.0u.6369_B20230113. This vulnerability affects the function sub_458E40 of the file /boafrm/formDdns. The manipulation of the argument submit-url leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

Vendor	Product	Versions
Totolink	X5000R	affected `9.1.0u.6369_B20230113`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

VDB-361926 | Totolink X5000R formDdns sub_458E40 buffer overflow

vdb-entry

technical-description

VDB-361926 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #808863 | Totolink X5000R V9.1.0u.6369_B20230113 Stack-based Buffer Overflow

third-party-advisory

https://github.com/Kiciot/cve/issues/4

exploit

issue-tracking

https://www.totolink.net/

product

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