Certain NETGEAR devices are affected by a buffer overflow by an authenticated user.

published 2020-04-16 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-11251

cvss: 6.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits: 0; none known

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D6220 before 1.0.0.52, D6400 before 1.0.0.86, D7000v2 before 1.0.0.53, D8500 before 1.0.3.44, DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R6250 before 1.0.4.34, R6300v2 before 1.0.4.32, R6400 before 1.0.1.46, R6400v2 before 1.0.2.62, R6700 before 1.0.2.6, R6900 before 1.0.2.4, R6900P before 1.3.1.64, R7000 before 1.0.9.60, R7000P before 1.3.1.64, R7100LG before 1.0.0.52, R7300DST before 1.0.0.70, R7900 before 1.0.3.8, R7900P before 1.4.1.30, R8000 before 1.0.4.28, R8000P before 1.4.1.30, R8300 before 1.0.2.128, R8500 before 1.0.2.128, WNDR3400v3 before 1.0.1.24, and WNR3500Lv2 before 1.2.0.56.

Patch / fix

fixed in 20

netgear d6220_firmware 1.0.0.52
netgear d6400_firmware 1.0.0.86
netgear d7000_firmware 1.0.0.53
netgear d8500_firmware 1.0.3.44
netgear dgn2200_firmware 1.0.0.110
netgear dgnd2200b_firmware 1.0.0.109
netgear r6250_firmware 1.0.4.34
netgear r6300_firmware 1.0.4.32
netgear r6400_firmware 1.0.1.46, 1.0.2.62
netgear r6700_firmware 1.0.2.6
netgear r6900_firmware 1.0.2.4
netgear r6900p_firmware 1.3.1.64
netgear r7000_firmware 1.0.9.60
netgear r7000p_firmware 1.3.1.64
netgear r7100lg_firmware 1.0.0.52
netgear r7300dst_firmware 1.0.0.70
netgear r7900_firmware 1.0.3.8
netgear r7900p_firmware 1.4.1.30
netgear r8000_firmware 1.0.4.28
netgear r8000p_firmware 1.4.1.30

Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	6.8	CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N
NVD	3.1	6.8	CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA	3.0	6.8	CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	5.2	AV:A/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness

CWE-120 Buffer Copy without Checking Size of Input

References

kb.netgear.com /000061216/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-and-Gateways-PSV-2018-032
vendor-advisory

Sources

CVE List CVE-2019-20712
NVD CVE-2019-20712

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