CVE-2025-25504: gefen webfwc Command Injection

Description

An issue in the /usr/local/bin/jncs.sh script of Gefen WebFWC (In AV over IP products) v1.85h, v1.86v, and v1.70 allows attackers with network access to connect to the device over TCP port 4444 without authentication and execute arbitrary commands with root privileges.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-77 CWE-77

CWE-287 Improper Authentication

Affected Products

Vendor	Product	Versions
niceforyou	gefen_webfwc	All
niceforyou	gefen_gf-avip-mc_firmware	All
niceforyou	gefen_webfwc	All
niceforyou	gefen_webfwc	All
niceforyou	gefen_gf-avip-mc_firmware	All

References

Exploits

https://www.troy-wilson.com/cve-2025-25504.html

Other References

http://gefen.com

Frequently Asked Questions

What is CVE-2025-25504? +

An issue in the /usr/local/bin/jncs.sh script of Gefen WebFWC (In AV over IP products) v1.85h, v1.86v, and v1.70 allows attackers with network access to connect to the device over TCP port 4444 without authentication and execute arbitrary commands with root privileges. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-25504? +

CVE-2025-25504 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-25504? +

CVE-2025-25504 affects products from niceforyou, specifically: gefen_gf-avip-mc_firmware, gefen_webfwc. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-25504? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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