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

published 2020-04-16 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-11286

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 stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.58, D7800 before 1.0.1.40, R7500v2 before 1.0.3.34, R7800 before 1.0.2.52, R8900 before 1.0.4.2, R9000 before 1.0.3.16, RAX120 before 1.0.0.74, RBK20 before 2.3.0.22, RBR20 before 2.3.0.22, RBS20 before 2.3.0.22, RBK50 before 2.3.0.22, RBR50 before 2.3.0.22, RBS50 before 2.3.0.22, RBK40 before 2.3.0.22, RBS40 before 2.3.0.22, SRK60 before 2.2.0.64, SRR60 before 2.2.0.64, SRS60 before 2.2.0.64, WNDR3700v4 before 1.0.2.102, WNDR4300 before 1.0.2.104, WNDR4300v2 before 1.0.0.56, WNDR4500v3 before 1.0.0.56, and WNR2000v5 before 1.0.0.66.

Patch / fix

fixed in 20

netgear d6100_firmware 1.0.0.58
netgear d7800_firmware 1.0.1.40
netgear r7500_firmware 1.0.3.34
netgear r7800_firmware 1.0.2.52
netgear r8900_firmware 1.0.4.2
netgear r9000_firmware 1.0.3.16
netgear rax120_firmware 1.0.0.74
netgear rbk20_firmware 2.3.0.22
netgear rbr20_firmware 2.3.0.22
netgear rbs20_firmware 2.3.0.22
netgear rbk50_firmware 2.3.0.22
netgear rbr50_firmware 2.3.0.22
netgear rbs50_firmware 2.3.0.22
netgear rbk40_firmware 2.3.0.22
netgear rbs40_firmware 2.3.0.22
netgear srk60_firmware 2.2.0.64
netgear srr60_firmware 2.2.0.64
netgear srs60_firmware 2.2.0.64
netgear wndr3700_firmware 1.0.2.102
netgear wndr4300_firmware 1.0.0.56, 1.0.2.104

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-787 Out-of-bounds Write

References

kb.netgear.com /000060962/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-Gateways-and-WiFi-Systems-
vendor-advisory

Sources

CVE List CVE-2019-20747
NVD CVE-2019-20747

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