A vulnerability was determined in TOTOLINK CA300-PoE 6.2c.884. Impacted is the function setIpQosRules of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument ipStart causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.
History

Mon, 09 Nov 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sat, 07 Nov 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Totolink ca300-poe
Vendors & Products Totolink ca300-poe

Sat, 07 Nov 2026 08:30:00 +0000

Type Values Removed Values Added
Description A vulnerability was determined in TOTOLINK CA300-PoE 6.2c.884. Impacted is the function setIpQosRules of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument ipStart causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.
Title TOTOLINK CA300-PoE cstecgi.cgi setIpQosRules buffer overflow
First Time appeared Totolink
Totolink ca300-poe Firmware
Weaknesses CWE-119
CWE-120
CPEs cpe:2.3:o:totolink:ca300-poe_firmware:*:*:*:*:*:*:*:*
Vendors & Products Totolink
Totolink ca300-poe Firmware
References
Metrics cvssV2_0

{'score': 9, 'vector': 'AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:C'}

cvssV3_0

{'score': 9.9, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C'}

cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C'}

cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-11-07T08:15:13.072Z

Updated: 2026-11-09T13:42:33.851Z

Reserved: 2026-11-06T17:07:11.931Z

Link: CVE-2026-123957

cve-icon Vulnrichment

Updated: 2026-11-09T13:42:30.436Z

cve-icon NVD

Status : Deferred

Published: 2026-11-07T09:17:14.890

Modified: 2026-11-09T14:17:13.553

Link: CVE-2026-123957

cve-icon Redhat

No data.