CVE-2026-124058

CRITICAL 9.1

TOTOLINK CA300-PoE cstecgi.cgi setWiFiRepeaterConfig buffer overflow

CVSS Score

9.1

EPSS Score

0.0%

EPSS Percentile

0th

A weakness has been identified in TOTOLINK CA300-PoE 6.2c.884. Affected is the function setWiFiRepeaterConfig of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument ApCliKeyStr can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

CWE	CWE-120 CWE-119
Vendor	totolink
Product	ca300-poe
Published	Nov 7, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

TOTOLINK / CA300-PoE

6.2c.884

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/432113 vuldb.com: https://vuldb.com/vuln/432113/cti vuldb.com: https://vuldb.com/cve/CVE-2026-124058 vuldb.com: https://vuldb.com/submit/1033755 lavender-bicycle-a5a.notion.site: https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setWiFiRepeaterConfig-3f953a41781f80349879d9aca7c4702a?source=copy_link totolink.net: https://www.totolink.net/

Credits

🔍 wxhwxhwxh_mie (VulDB User)