What is CVE-2017-2142?

CVE-2017-2142 is a critical-severity vulnerability in Iodata Wn-G300r3, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2017-04-28.

How severe is CVE-2017-2142?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Iodata Wn-G300r3

CVE-2017-2142

Buffer overflow in WN-G300R3 firmware Ver.1.03 and earlier allows remote attackers to execute arbitrary OS commands via unspecified vectors.

Vulnerability class: Buffer Overflow

Published 2017-04-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.031 (87.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000

Affected products

Iodata Wn-G300r3
Iodata Wn-G300r3 Firmware
I-O Data Device, Inc. Wn-G300r3 — versions firmware Ver.1.03 and earlier

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

jvn.jp/en/jp/JVN81024552/index.html (VDB Entry, Third Party Advisory, third-party-advisory)
www.iodata.jp/support/information/2017/wn-g300r3/ (Vendor Advisory)

Frequently asked questions

What is CVE-2017-2142?: CVE-2017-2142 is a critical-severity vulnerability in Iodata Wn-G300r3, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2017-04-28.
How severe is CVE-2017-2142?: Critical severity. CVSS v3 base score is 9.8 out of 10.