CVE-2026-8137

HIGH

Totolink X5000R formDdns sub_458E40 buffer overflow

Title source: cna
STIX 2.1

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.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-361926 | Totolink X5000R formDdns sub_458E40 buffer overflow
https://vuldb.com/vuln/361926
Signature, Permissions Required signature permissions-required
VDB-361926 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/361926/cti
Third Party Advisory third-party-advisory
Submit #808863 | Totolink X5000R V9.1.0u.6369_B20230113 Stack-based Buffer Overflow
https://vuldb.com/submit/808863
Exploit exploit issue-tracking
https://github.com/Kiciot/cve/issues/4
Product product
https://www.totolink.net/

Scores

CVSS v3 8.8
EPSS 0.0009
EPSS Percentile 24.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-119 CWE-120
Status published
Products (1)
Totolink/X5000R 9.1.0u.6369_B20230113
Published May 08, 2026
Tracked Since May 08, 2026