What is CVE-2020-10928?

CVE-2020-10928 is a high-severity vulnerability in NETGEAR R6700, classified under Heap-based Buffer Overflow. CVSS score: 8.4/10. Published 2020-07-28.

How severe is CVE-2020-10928?

High severity. CVSS v3 base score is 8.4 out of 10.

Buffer overflow in NETGEAR R6700

CVE-2020-10928

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of string table file uploads. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the web server. Was ZDI-CAN-9767.

Vulnerability class: Buffer Overflow

Published 2020-07-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (48.8th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

NETGEAR R6700 — versions V1.0.4.84_10.0.58
NETGEAR R6700 Firmware — versions 1.0.4.84_10.0.58

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

www.zerodayinitiative.com/advisories/ZDI-20-708/ (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2020-10928?: CVE-2020-10928 is a high-severity vulnerability in NETGEAR R6700, classified under Heap-based Buffer Overflow. CVSS score: 8.4/10. Published 2020-07-28.
How severe is CVE-2020-10928?: High severity. CVSS v3 base score is 8.4 out of 10.