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Description

A security flaw has been discovered in Totolink N300RH 3.2.4-B20220812. Affected by this vulnerability is the function loginauth of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument Password results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

PUBLISHED Reserved 2026-05-03 | Published 2026-05-04 | Updated 2026-05-04 | Assigner VulDB




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CRITICAL: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
10.0AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Buffer Overflow

Memory Corruption

Product status

3.2.4-B20220812
affected

Timeline

2026-05-03:Advisory disclosed
2026-05-03:VulDB entry created
2026-05-03:VulDB entry last update

Credits

wxhwxhwxh_mie (VulDB User) reporter

References

vuldb.com/vuln/360922 (VDB-360922 | Totolink N300RH Parameter cstecgi.cgi loginauth buffer overflow) vdb-entry technical-description

vuldb.com/vuln/360922/cti (VDB-360922 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/807201 (Submit #807201 | Totolink N300RH N300RH V3_Firmware V3.2.4-B20220812 Buffer Overflow) third-party-advisory

lavender-bicycle-a5a.notion.site/...0ad36f4d95122fd40?pvs=73 exploit

www.totolink.net/ product

cve.org (CVE-2026-7747)

nvd.nist.gov (CVE-2026-7747)

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