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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.

PUBLISHED Reserved 2026-05-07 | Published 2026-05-08 | Updated 2026-05-08 | Assigner VulDB




HIGH: 8.7CVSS: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
HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Buffer Overflow

Memory Corruption

Product status

9.1.0u.6369_B20230113
affected

Timeline

2026-05-07:Advisory disclosed
2026-05-07:VulDB entry created
2026-05-07:VulDB entry last update

Credits

kiciot (VulDB User) reporter

References

vuldb.com/vuln/361926 (VDB-361926 | Totolink X5000R formDdns sub_458E40 buffer overflow) vdb-entry technical-description

vuldb.com/vuln/361926/cti (VDB-361926 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/808863 (Submit #808863 | Totolink X5000R V9.1.0u.6369_B20230113 Stack-based Buffer Overflow) third-party-advisory

github.com/Kiciot/cve/issues/4 exploit issue-tracking

www.totolink.net/ product

cve.org (CVE-2026-8137)

nvd.nist.gov (CVE-2026-8137)

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