Critical severity · published Apr 30, 2025
CVE-2025-4140
Netgear EX6120 sub_30394 buffer overflow
9.8
CVSS
1.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EX
EX6120 · Netgear
1.0.3.94 · source: vendor
EF
Ex6120 Firmware · Netgear
1.0.3.94 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-4140
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-4140
Exploit
https://github.com/jylsec/vuldb/blob/main/Netgear/netgear_ex6200/Buffer_overflow-sub_30394-wifi_2g_onoff_sche/README.md
Permissions Required
https://vuldb.com/?ctiid.306632
Third Party Advisory
https://vuldb.com/?id.306632
Third Party Advisory
https://vuldb.com/?submit.560788
Product
https://www.netgear.com/
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