CVE-2019-20740

6.8 mediumEPSS 0.5%

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130.

Severity

CVSS 3.1

6.8 medium

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2020-04-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

netgear:dgn2200_firmware
netgear:dgnd2200b_firmware
netgear:r7300_firmware
netgear:r8300_firmware
netgear:r8500_firmware

References

https://kb.netgear.com/000060976/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0258
https://kb.netgear.com/000060976/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0258

Check your stack JSON