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CVE-2025-4142

26
FAUCET Score

CVE-2025-4142 is a critical buffer overflow vulnerability affecting Netgear EX6200 firmware version 1.0.3.94 and potentially EX6120, stemming from improper handling of the 'host' argument in the sub_3C8EC function. With a CVSS score of 9.8, this vulnerability allows for remote, unauthenticated attacks with high impact on confidentiality, integrity, and availability. There is no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed on the KEV catalog, indicating no active exploitation; however, there is limited community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.3.94CPE matchmatch criteria
cpe:2.3:o:netgear:ex6200_firmware:1.0.3.94:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.7HIGH

CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
1.03%
Probability of exploitation in next 30 days
EPSS Percentile
60.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0103 is in the 45th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / jylsec/vuldb/blob/main/Netgear/netgear_ex6200/Buffer_overflow-sub_3C8EC-gui_Wireless_Security_state/README.md
Exploit
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
netgear.com
Product