PT-2025-18339 · NetGear · Netgear Ex6120

54357 · Published 2025-04-17 · Updated 2025-05-01 · CVE-2025-4140

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Netgear EX6120 version 1.0.3.94

Description A critical issue has been found, affecting the sub 30394 function. The manipulation of the host argument leads to a buffer overflow. This issue can be exploited remotely. The vendor was contacted about this disclosure but did not respond.

Recommendations For Netgear EX6120 version 1.0.3.94, as a temporary workaround, consider restricting access to the sub 30394 function to minimize the risk of exploitation. Avoid using the host argument in the affected function until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2025-07197

CVE-2025-4140

Affected Products

Netgear Ex6120

References · 12

• 🔥 https://github.com/jylsec/vuldb/blob/main/Netgear/netgear_ex6200/Buffer_overflow-sub_30394-wifi_2g_onoff_sche/README.md · Exploit
• https://bdu.fstec.ru/vul/2025-07197 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-4140 · Security Note
• https://osv.dev/vulnerability/CVE-2025-4140 · Vendor Advisory
• https://vuldb.com/?ctiid.306632 · Note
• https://vuldb.com/?id.306632 · Note
• https://t.me/cvetracker/22771 · Telegram Post
• https://vuldb.com/?submit.560788 · Note
• https://t.me/cvedetector/24165 · Telegram Post
• https://netgear.com · Note
• https://twitter.com/CVEnew/status/1917698063067390063 · Twitter Post
• https://twitter.com/CveFindCom/status/1917701174297350181 · Twitter Post