Buffer overflow in Netgear Ex6120
CVE-2025-4140
A vulnerability, which was classified as critical, has been found in Netgear EX6120 1.0.3.94. Affected by this issue is the function sub_30394. The manipulation of the argument host leads to buffer overflow. The attack may be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
EPSS: 0.010 (60.1th 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
- Netgear Ex6120 — versions 1.0.3.94
- Netgear Ex6120_firmware — versions 1.0.3.94
Weakness classification (CWE)
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 (related, Exploit)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2025-4140?
- CVE-2025-4140 is a high-severity vulnerability in Netgear Ex6120, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-04-30.
- How severe is CVE-2025-4140?
- High severity. CVSS v3 base score is 8.8 out of 10.