Buffer overflow in Totolink X18
CVE-2025-1340
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.
Vulnerability class: Buffer Overflow
EPSS: 0.167 (96.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Totolink X18 — versions 9.1.0cu.2024_B20220329
- Totolink X18_firmware — versions 9.1.0cu.2024_b20220329
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (exploit, Broken Link)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2025-1340?
- CVE-2025-1340 is a high-severity vulnerability in Totolink X18, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-02-16.
- How severe is CVE-2025-1340?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2025-1340 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.