CVE-2021-4161
HIGHCVSS 7.5/10EPSS 0.66%
Last modified
CVE-2021-4161 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The affected products contain vulnerable firmware, which could allow an attacker to sniff the traffic and decrypt login credential details. This could give an attacker admin rights through the HTTP web server.. EPSS estimates a 0.66% chance of exploitation in the next 30 days.
Description
The affected products contain vulnerable firmware, which could allow an attacker to sniff the traffic and decrypt login credential details. This could give an attacker admin rights through the HTTP web server.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Moxa | Mgate Mb3180 Firmware | <= 2.2 |
| Moxa | Mgate Mb3280 Firmware | <= 4.1 |
| Moxa | Mgate Mb3480 Firmware | <= 3.2 |
References
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-357-01Third Party Advisory, US Government Resource
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-357-01Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-4161?
The affected products contain vulnerable firmware, which could allow an attacker to sniff the traffic and decrypt login credential details. This could give an attacker admin rights through the HTTP web server.
How severe is CVE-2021-4161?
CVE-2021-4161 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.
How do I fix CVE-2021-4161?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-4161?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST