CVE-2026-123958

HIGH
MEDIUM Priority: 0.04 BB Relevance: 67/100
Published: 2026-11-07 Modified: 2026-11-11 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
S: X
AT: None
VC: High
VI: High
VA: High

Description

A vulnerability was identified in TOTOLINK CA300-PoE 6.2c.884. The affected element is the function setLanConfig of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument lanDns/lanSecDns/langType leads to buffer overflow. It is possible to launch the attack remotely. The exploit is publicly available and might be used.

Weakness Classification (2)

Affected Software (2)

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

Bug Bounty Relevance

67 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.6 / 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.47%
Raw Score 0.004660
Percentile 40.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00466
2026-11-12
0.00466
2026-11-10
0.00466
2026-11-09
0.00466
2026-11-08
0.00466
2026-11-07
0.00466

Intelligence Sources

mitre ref →
nvd ref →