CVE-2026-123960

CRITICAL
INFO Priority: 0.07 BB Relevance: 69/100
Published: 2026-11-07 Modified: 2026-11-09 First seen: 2026-11-07 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
AT: None
VC: High
VI: High
VA: High

Description

A weakness has been identified in TOTOLINK CA300-PoE 6.2c.884. This affects the function setWanConfig of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument pppoeUser/priDns/secDns 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.

Weakness Classification (2)

Affected Software (2)

VendorProductVersion
TOTOLINK CA300-PoE 6.2c.884
TOTOLINK CA300-PoE 6.2c.884

Bug Bounty Relevance

69 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

9.4 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.80%
Raw Score 0.007960
Percentile 57.0%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00796
2026-11-12
0.00796
2026-11-10
0.00796
2026-11-09
0.00796
2026-11-08
0.00796
2026-11-07
0.00796

Intelligence Sources

mitre ref →
nvd ref →