Buffer overflow in Moxa Nport Iaw5000a-I/o Series Firmware
CVE-2021-32976
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.028 (85.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Moxa Nport Iaw5000a-I/o Series Firmware — versions unspecified
- Moxa Nport Iaw5150a-12i\/o
- Moxa Nport Iaw5150a-12i\/o Firmware
- Moxa Nport Iaw5150a-6i\/o
- Moxa Nport Iaw5150a-6i\/o Firmware
- Moxa Nport Iaw5250a-12i\/o
- Moxa Nport Iaw5250a-12i\/o Firmware
- Moxa Nport Iaw5250a-6i\/o
- Moxa Nport Iaw5250a-6i\/o Firmware
Weakness classification (CWE)
References
- www.cisa.gov/uscert/ics/advisories/icsa-21-187-01 (US Government Resource, Third Party Advisory, Mitigation)
- www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-ser… (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-32976?
- CVE-2021-32976 is a critical-severity vulnerability in Moxa Nport Iaw5000a-I/o Series Firmware, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2022-04-01.
- How severe is CVE-2021-32976?
- Critical severity. CVSS v3 base score is 9.8 out of 10.