What is CVE-2020-35221?

CVE-2020-35221 is a high-severity vulnerability in NETGEAR Gs116e, classified under Inadequate Encryption Strength. CVSS score: 8.8/10. Published 2021-03-10.

How severe is CVE-2020-35221?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in NETGEAR Gs116e

CVE-2020-35221

The hashing algorithm implemented for NSDP password authentication on NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices was found to be insecure, allowing attackers (with access to a network capture) to quickly generate multiple collisions to generate valid passwords, or infer some parts of the original.

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

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (39.3th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · 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-326 — Inadequate Encryption Strength

References

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

Frequently asked questions

What is CVE-2020-35221?: CVE-2020-35221 is a high-severity vulnerability in NETGEAR Gs116e, classified under Inadequate Encryption Strength. CVSS score: 8.8/10. Published 2021-03-10.
How severe is CVE-2020-35221?: High severity. CVSS v3 base score is 8.8 out of 10.