# 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…

Source: https://junglewise.ai/threats/cve-2025-50398-mercury-d196g-d196gv1-cn-up-2020-01-09-11-21-44-is-vulnerable-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-12-16  
License: CC BY 4.0 with a link back

CVE-2025-50398 · Severity: critical · CVSS 9.8 · Published 2025-12-16

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.

Vendors: [Mercurycom](https://junglewise.ai/threats/vendors/mercurycom).

## Quick answers

**Is CVE-2025-50398 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-50398 being exploited in the wild.

**How severe is CVE-2025-50398?** Critical severity, with a CVSS score of 9.8, published 16 December 2025.

**Which products and versions are affected?** Mercurycom D196g, Mercurycom D196g Firmware. The advisory does not name versions.

**Is there a fix for CVE-2025-50398?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2025-50398?** Check whether you run Mercurycom D196g or Mercurycom D196g Firmware. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Mercurycom D196g
- Mercurycom D196g Firmware

## Related threats

- [Mercury D196G d196gv1-cn-up_2020-01-09_11.21.44 is vulnerable to Buffer Overflow in the function sub_404CAEDC via the parameter password.](https://junglewise.ai/threats/cve-2025-50401-mercury-d196g-d196gv1-cn-up-2020-01-09-11-21-44-is-vulnerable-to)