CVE-2025-50398

Name: CVE-2025-50398
Creator: NVD / NIST
Published: 2025-12-16T17:16:08.857+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.36%

Last modified Jun 17, 2026

CVE-2025-50398 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Mercury D196G d196gv1-cn-up_2020-01-09_11.21.44 is vulnerable to Buffer Overflow in the function sub_404CAEDC via the parameter fac_password.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

Description

Mercury D196G d196gv1-cn-up_2020-01-09_11.21.44 is vulnerable to Buffer Overflow in the function sub_404CAEDC via the parameter fac_password.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.36%

27.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Mercurycom	D196g Firmware	All versions

References

https://github.com/sezangel/IOT-vul/tree/main/Mercury/D196G/2Exploit, Third Party Advisory
https://github.com/sezangel/IOT-vul/tree/main/Mercury/D196G/2Exploit, Third Party Advisory

Timeline

Published: Dec 16, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-50398?

Mercury D196G d196gv1-cn-up_2020-01-09_11.21.44 is vulnerable to Buffer Overflow in the function sub_404CAEDC via the parameter fac_password.

How severe is CVE-2025-50398?

CVE-2025-50398 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2025-50398?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-50398?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST