CVE-2021-33823
HIGH
7.5
CVSS Score
Published: June 18, 2021 at 07:02 PM UTC
Updated: June 17, 2026 at 03:55 AM UTC
2 products affected across 1 vendorMgate MB3180 FirmwareMgate Mb3180
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Severity
HIGH7.5
Exploit prediction
EPSS 1%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Mgate Mb3180· Moxadevice
80%All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33823.mdx_refsource_MISCProductVendor Advisory
Source: [email protected]
https://www.moxa.com/en/products/industrial-edge-connectivity/protocol-gateways/modbus-tcp-gateways/mgate-mb3180-mb3280-mb3480-seriesCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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