Critical severity · published Apr 23, 2020
CVE-2018-21134
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker
9.8
CVSS
1.3%
EPSS
No
On KEV
Description
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects R6700 before 1.0.1.48, R7900 before 1.0.2.16, R6900 before 1.0.1.48, R7000P before 1.3.1.44, R6900P before 1.3.1.44, R6250 before 1.0.4.30, R6300v2 before 1.0.4.32, R6400 before 1.0.1.44, R6400v2 before 1.0.2.60, R7000 before 1.0.9.34, R7100LG before 1.0.0.48, R7300 before 1.0.0.68, R8000 before 1.0.4.18, R8000P before 1.4.1.24, R7900P before 1.4.1.24, R8500 before 1.0.2.122, R8300 before 1.0.2.122, WN2500RPv2 before 1.0.1.54, EX3700 before 1.0.0.72, EX3800 before 1.0.0.72, EX6000 before 1.0.0.32, EX6100 before 1.0.2.24, EX6120 before 1.0.0.42, EX6130 before 1.0.0.24, EX6150v1 before 1.0.0.42, EX6200 before 1.0.3.88, EX7000 before 1.0.0.66, D7000v2 before 1.0.0.51, D6220 before 1.0.0.46, D6400 before 1.0.0.82, and D8500 before 1.0.3.42.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
D6220 Firmware · Netgear
before 1.0.0.46 · source: NVD
DF
D6400 Firmware · Netgear
before 1.0.0.82 · source: NVD
DF
D7000 Firmware · Netgear
before 1.0.0.51 · source: NVD
DF
D8500 Firmware · Netgear
before 1.0.3.42 · source: NVD
EF
Ex3700 Firmware · Netgear
before 1.0.0.72 · source: NVD
EF
Ex3800 Firmware · Netgear
before 1.0.0.72 · source: NVD
EF
Ex6000 Firmware · Netgear
before 1.0.0.32 · source: NVD
EF
Ex6100 Firmware · Netgear
before 1.0.2.24 · source: NVD
EF
Ex6120 Firmware · Netgear
before 1.0.0.42 · source: NVD
EF
Ex6130 Firmware · Netgear
before 1.0.0.24 · source: NVD
EF
Ex6150 Firmware · Netgear
before 1.0.0.42 · source: NVD
EF
Ex6200 Firmware · Netgear
before 1.0.3.88 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-21134
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-21134
Vendor Advisory
https://kb.netgear.com/000060226/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Wireless-Extenders-PSV-2017-2019
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