CVE-2025-50398: n/a
Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 25 Oct 2026, 19:02 UTC
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 16 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 prevent remote exploitation. 2. Disable or restrict access to the fac_password parameter interface if possible, or apply strict input validation controls at network boundaries. 3. Implement network segmentation to limit the impact of a compromised device and prevent lateral movement. 4. Monitor network traffic and device logs for unusual activity indicative of exploitation attempts, such as malformed packets targeting the fac_password parameter. 5. Engage with the device vendor or supplier to obtain firmware updates or patches as soon as they become available. 6. Consider deploying intrusion detection/prevention systems (IDS/IPS) with signatures tuned to detect exploitation attempts targeting this vulnerability. 7. Conduct regular security audits and penetration testing focusing on embedded devices and their management interfaces. 8. Prepare incident response plans specifically addressing potential exploitation of this vulnerability to enable rapid containment and recovery.
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.