CVE-2026-8137 HIGH

CVE-2026-8137: Totolink X5000R formDdns sub_458E40 buffer overflow

Vendor Totolink
Product X5000R
Weakness CWE-120
Published May 8, 2026
Last update May 8, 2026
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 8, 2026 CVE published
May 8, 2026 Record updated