CVE-2018-21170

8.8 highEPSS 0.7%

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects EX2700 before 1.0.1.28, R7800 before 1.0.2.40, WN2000RPTv3 before 1.0.1.20, WN3000RPv3 before 1.0.2.50, and WN3100RPv2 before 1.0.0.56.

Severity

CVSS 3.1

8.8 high

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

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2020-04-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

netgear:ex2700_firmware
netgear:r7800_firmware
netgear:wn2000rpt_firmware
netgear:wn3000rp_firmware
netgear:wn3100rp_firmware

References

https://kb.netgear.com/000055188/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Extenders-PSV-2017-2638
https://kb.netgear.com/000055188/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Extenders-PSV-2017-2638

Check your stack JSON