Medium severity · published Apr 16, 2020
CVE-2019-20747
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user
6.8
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
D6100 Firmware · Netgear
before 1.0.0.58 · source: NVD
DF
D7800 Firmware · Netgear
before 1.0.1.40 · source: NVD
RF
R7500 Firmware · Netgear
before 1.0.3.34 · source: NVD
RF
R7800 Firmware · Netgear
before 1.0.2.52 · source: NVD
RF
R8900 Firmware · Netgear
before 1.0.4.2 · source: NVD
RF
R9000 Firmware · Netgear
before 1.0.3.16 · source: NVD
RF
Rax120 Firmware · Netgear
before 1.0.0.74 · source: NVD
RF
Rbk20 Firmware · Netgear
before 2.3.0.22 · source: NVD
RF
Rbk40 Firmware · Netgear
before 2.3.0.22 · source: NVD
RF
Rbk50 Firmware · Netgear
before 2.3.0.22 · source: NVD
RF
Rbr20 Firmware · Netgear
before 2.3.0.22 · source: NVD
RF
Rbr50 Firmware · Netgear
before 2.3.0.22 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-20747
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-20747
Vendor Advisory
https://kb.netgear.com/000060962/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-Gateways-and-WiFi-Systems-PSV-2018-0032
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