CVE-2026-114382

TOTOLINK EX200 lan.so cstecgi.cgi setStaticDhcpConfig stack-based overflow

Published Oct 21, 2026 CVSS 4.0 · 10 Critical EPSS < 1% KEV · Not listed
Description
A security flaw has been discovered in TOTOLINK EX200 5.2.3c.7200. This affects the function setStaticDhcpConfig of the file /cgi-bin/cstecgi.cgi of the component lan.so. The manipulation of the argument Comment results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Totolink ex200
Vendors & Products Totolink ex200
Type Values Removed Values Added
Description A security flaw has been discovered in TOTOLINK EX200 5.2.3c.7200. This affects the function setStaticDhcpConfig of the file /cgi-bin/cstecgi.cgi of the component lan.so. The manipulation of the argument Comment results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
Title TOTOLINK EX200 lan.so cstecgi.cgi setStaticDhcpConfig stack-based overflow
First Time appeared Totolink
Totolink ex200 Firmware
Weaknesses CWE-119
CWE-121
CPEs cpe:2.3:o:totolink:ex200_firmware:*:*:*:*:*:*:*:*
Vendors & Products Totolink
Totolink ex200 Firmware
References
Metrics cvssV2_0

{'score': 10, 'vector': 'AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 10, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 10, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Oct 28, 2026, 1:59 AM
Reserved
Oct 21, 2026, 11:26 AM
Status
Deferred
Published
Oct 21, 2026, 10:16 PM
Modified
Oct 28, 2026, 2:17 AM