Vulnerability in Moxa Mgate Mb3180
CVE-2021-33823
An issue was discovered on MOXA Mgate MB3180 Version 2.1 Build 18113012. Attacker could send a huge amount of TCP SYN packet to make web service's resource exhausted. Then the web server is denial-of-service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.013 (69.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Moxa Mgate Mb3180
- Moxa Mgate Mb3180 Firmware — versions 2.1
Public proof-of-concept exploits
References
- www.moxa.com/en/products/industrial-edge-connectivity/protocol-gateways/modbus-… (Product, Vendor Advisory)
- github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33823.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-33823?
- CVE-2021-33823 is a high-severity vulnerability in Moxa Mgate Mb3180. CVSS score: 7.5/10. Published 2021-06-18.
- How severe is CVE-2021-33823?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-33823 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.