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CVE-2025-50401VulnerabilityPublished Updated

CVE-2025-50401: n/a

Source CVE Database V5

0

Not known to be exploited · CVSS 9.8 Critical.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 36% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

AI-suggested

1. Immediately isolate Mercury D196G devices from untrusted networks, especially the internet, to reduce exposure. 2. Disable remote management interfaces or restrict access to trusted IP addresses only. 3. Implement strict network segmentation to limit lateral movement if a device is compromised. 4. Monitor network traffic and device logs for anomalous behavior indicative of exploitation attempts, such as unexpected reboots or unusual command execution. 5. Engage with Mercury device vendors or suppliers to obtain firmware updates or patches as soon as they become available. 6. Consider deploying intrusion detection/prevention systems (IDS/IPS) with signatures targeting buffer overflow attempts on these devices. 7. Conduct regular vulnerability assessments and penetration tests focusing on network infrastructure devices. 8. Develop and rehearse incident response plans specific to network device compromise scenarios. 9. Maintain an inventory of all Mercury devices within the organization to ensure comprehensive coverage of mitigation efforts.

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 password.

References

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