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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-1340

A vulnerability classified as critical has been found in TOTOLINK X18 9.1.0cu.2024_B20220329.

HIGH 8.7EPSS 16.7%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 16.7%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

A vulnerability classified as critical has been found in TOTOLINK X18 9.1.0cu.2024_B20220329. Affected is the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi. The manipulation as part of String leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS 4.0
8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
16.67% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-119, CWE-121, CWE-787
Affected
totolink/x18 firmware
Source
cna@vuldb.com
EPSS trend
0%10%20%2 November 2026: 16.67%2 November 20262 November 2026

EPSS 16.7% since 2 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.