What is CVE-2020-35227?

CVE-2020-35227 is a high-severity vulnerability in NETGEAR Gs116e, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.2/10. Published 2021-03-10.

How severe is CVE-2020-35227?

High severity. CVSS v3 base score is 7.2 out of 10.

Buffer overflow in NETGEAR Gs116e

CVE-2020-35227

A buffer overflow vulnerability in the access control section on NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices (in the administration web panel) allows an attacker to inject IP addresses into the whitelist via the checkedList parameter to the delete command.

Vulnerability class: Buffer Overflow

Published 2021-03-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.7th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.012 · change: +0.000

Affected products

NETGEAR Gs116e — versions v2
NETGEAR Gs116e Firmware — versions 2.6.0.43
NETGEAR Jgs516pe
NETGEAR Jgs516pe Firmware — versions 2.6.0.43

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in… (Vendor Advisory)

Frequently asked questions

What is CVE-2020-35227?: CVE-2020-35227 is a high-severity vulnerability in NETGEAR Gs116e, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.2/10. Published 2021-03-10.
How severe is CVE-2020-35227?: High severity. CVSS v3 base score is 7.2 out of 10.