What is CVE-2017-18758?

CVE-2017-18758 is a high-severity vulnerability in NETGEAR R6700, classified under Out-of-bounds Write. CVSS score: 8.0/10. Published 2020-04-22.

How severe is CVE-2017-18758?

High severity. CVSS v3 base score is 8.0 out of 10.

Buffer overflow in NETGEAR R6700

CVE-2017-18758

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects R6700v2 before 1.1.0.42, R6800 before 1.1.0.42, and R6900v2 before 1.1.0.42.

Vulnerability class: Buffer Overflow

Published 2020-04-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (57.6th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

kb.netgear.com/000051487/Security-Advisory-for-Post-Authentication-Stack-Overfl… (Vendor Advisory)

Frequently asked questions

What is CVE-2017-18758?: CVE-2017-18758 is a high-severity vulnerability in NETGEAR R6700, classified under Out-of-bounds Write. CVSS score: 8.0/10. Published 2020-04-22.
How severe is CVE-2017-18758?: High severity. CVSS v3 base score is 8.0 out of 10.