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Vulnerability record · CVE-2017-18864 · published 5 May 2020

CVE-2017-18864: Netgear r6400 firmware classic buffer overflow vulnerability

Netgear · R6400 Firmware

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects R6400 before 1.0.1.24, R6400v2 before 1.0.2.32, R6700 before 1.0.1.22, R6900 before 1.0.1.22, R7000 before 1.0.9.4, R7000P before 1.0.0.56, R6900P before 1.0.0.56, R7100LG before 1.0.0.32, R7300 before 1.0.0.54, R7900 before 1.0.1.18, R8300 before 1.0.2.104, and R8500 before 1.0.2.104.

8.8 CVSS 3.1 High EPSS 0.57% · top 54.7% CWE-120 · Classic buffer overflow
8.8CVSS 3.1 base score, v2 5.8
0.57%EPSS exploitation probability, 30 days
NoNot in CISA KEV
11Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects R6400 before 1.0.1.24, R6400v2 before 1.0.2.32, R6700 before 1.0.1.22, R6900 before 1.0.1.22, R7000 before 1.0.9.4, R7000P before 1.0.0.56, R6900P before 1.0.0.56, R7100LG before 1.0.0.32, R7300 before 1.0.0.54, R7900 before 1.0.1.18, R8300 before 1.0.2.104, and R8500 before 1.0.2.104.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

11 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://kb.netgear.com/000051495/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Routers-PSV-2017-0791 Vendor Advisory
https://kb.netgear.com/000051495/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Routers-PSV-2017-0791 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-18864), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.