Vulnerability · Published Apr 1, 2022 · Assigned by icscert
CVE-2021-32976Moxa NPort IAW5000A-I/O Series Serial Device Server Stack-based Buffer Overflow
Critical 9.8
In plain English
A critical-severity stack buffer overflow in NPort IAW5000A-I/O series firmware from Moxa. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.8% (higher than 86% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)2.8%top 13.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Moxa | NPort IAW5000A-I/O series firmware | unspecified – through 2.2 |
Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H