Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker.

published 2020-04-16 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-11231

cvss: 6.3; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits: 0; none known

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D6220 before 1.0.0.44, D6400 before 1.0.0.78, D7000v2 before 1.0.0.51, D8500 before 1.0.3.42, DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, EX3700 before 1.0.0.70, EX3800 before 1.0.0.70, EX6000 before 1.0.0.30, EX6100 before 1.0.2.24, EX6120 before 1.0.0.40, EX6130 before 1.0.0.22, EX6150v1 before 1.0.0.42, EX6200 before 1.0.3.88, EX7000 before 1.0.0.66, R6250 before 1.0.4.26, R6300v2 before 1.0.4.28, R6400 before 1.0.1.36, R6400v2 before 1.0.2.52, R6700 before 1.0.1.46, R6900 before 1.0.1.46, R7000 before 1.0.9.28, R6900P before 1.3.1.44, R7000P before 1.3.1.44, R7100LG before 1.0.0.46, R7300DST before 1.0.0.68, R7900 before 1.0.2.10, R8000 before 1.0.4.12, R7900P before 1.3.0.10, R8000P before 1.3.0.10, R8300 before 1.0.2.122, R8500 before 1.0.2.122, WN2500RPv2 before 1.0.1.54, WNDR3400v3 before 1.0.1.22, and WNR3500Lv2 before 1.2.0.54.

Patch / fix

fixed in 20

netgear d6220_firmware 1.0.0.44
netgear d6400_firmware 1.0.0.78
netgear d7000_firmware 1.0.0.51
netgear d8500_firmware 1.0.3.42
netgear dgn2200_firmware 1.0.0.110
netgear dgnd2200b_firmware 1.0.0.109
netgear ex3700_firmware 1.0.0.70
netgear ex3800_firmware 1.0.0.70
netgear ex6000_firmware 1.0.0.30
netgear ex6100_firmware 1.0.2.24
netgear ex6120_firmware 1.0.0.40
netgear ex6130_firmware 1.0.0.22
netgear ex6150_firmware 1.0.0.42
netgear ex6200_firmware 1.0.3.88
netgear ex7000_firmware 1.0.0.66
netgear r6250_firmware 1.0.4.26
netgear r6300_firmware 1.0.4.28
netgear r6400_firmware 1.0.1.36, 1.0.2.52
netgear r6700_firmware 1.0.1.46
netgear r6900_firmware 1.0.1.46

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	6.3	CVSS:3.0/AC:L/AV:L/A:L/C:H/I:H/PR:H/S:U/UI:N
NVD	3.1	6.7	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA	3.0	6.3	CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L
NVD	2.0	4.6	AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-787 Out-of-bounds Write

References

kb.netgear.com /000061447/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-Gateways-and-Extenders-PSV-
vendor-advisory

Sources

CVE List CVE-2019-20692
NVD CVE-2019-20692

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary