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Vulnerability record · CVE-2018-21097 · published 27 April 2020

CVE-2018-21097: Netgear wac505 firmware out-of-bounds write vulnerability

Netgear · Wac505 Firmware

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects WAC505 before 5.0.5.4, WAC510 before 5.0.5.4, WAC120 before 2.1.7, WN604 before 3.3.10, WNAP320 before 3.7.11.4, WNAP210v2 before 3.7.11.4, WNDAP350 before 3.7.11.4, WNDAP360 before 3.7.11.4, WNDAP660 before 3.7.11.4, WNDAP620 before 2.1.7, and WND930 before 2.1.5.

9.8 CVSS 3.1 Critical EPSS 1.2% · top 33.3% CWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score, v2 7.5
1.2%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 stack-based buffer overflow by an unauthenticated attacker. This affects WAC505 before 5.0.5.4, WAC510 before 5.0.5.4, WAC120 before 2.1.7, WN604 before 3.3.10, WNAP320 before 3.7.11.4, WNAP210v2 before 3.7.11.4, WNDAP350 before 3.7.11.4, WNDAP360 before 3.7.11.4, WNDAP660 before 3.7.11.4, WNDAP620 before 2.1.7, and WND930 before 2.1.5.

CVSS:3.1/AV:N/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/000060457/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Wireless-Access-Points- Vendor Advisory
https://kb.netgear.com/000060457/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Wireless-Access-Points- Vendor Advisory

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Related vulnerabilities

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

9.8CVE-2016-1555Netgear wireless access point PHP scripts allow unauthenticated command injectionSeveral PHP scripts (boardData102.php, boardData103.php, boardDataJP.php, boardDataNA.php, boardDataWW.php) in Netgear WN604 and multiple WNAP/WNDAP …KEVEPSS 98%analysed9.8CVE-2018-21132Netgear wac505 firmware missing authentication for critical function vulnerabilityCertain NETGEAR devices are affected by authentication bypass. This affects WAC505 before 5.0.0.17 and WAC510 before 5.0.0.17.EPSS 1.7%9.8CVE-2018-21133Netgear wac505 firmware out-of-bounds write vulnerabilityCertain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects WAC505 before 5.0.0.17 and WAC510 …EPSS 1.4%9.1CVE-2018-21131Netgear wac505 firmware vulnerabilityCertain NETGEAR devices are affected by unauthenticated firmware downgrade. This affects WAC505 before 5.0.0.17 and WAC510 before 5.0.0.17.EPSS 1.3%8.8CVE-2018-21127Netgear wac505 firmware os command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects WAC505 before 5.0.0.17 and WAC510 before 5.0.0…EPSS 1.4%8.8CVE-2018-21128Netgear wac505 firmware improper authentication vulnerabilityCertain NETGEAR devices are affected by authentication bypass. This affects WAC505 before 5.0.0.17 and WAC510 before 5.0.0.17.EPSS 0.76%8.8CVE-2018-21130Netgear wac505 firmware os command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects WAC505 before 5.0.0.17 and WAC510 before 5.0.0…EPSS 1.6%8.8CVE-2018-21124Netgear wac505 firmware improper privilege management vulnerabilityNETGEAR WAC510 devices before 5.0.0.17 are affected by privilege escalation.EPSS 0.60%

Source: NIST National Vulnerability Database (record CVE-2018-21097), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.