// For flags

CVE-2018-21156

 

Severity Score

7.2
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D6220 before 1.0.0.38, D6400 before 1.0.0.74, D7000v2 before 1.0.0.74, D8500 before 1.0.3.39, DGN2200v4 before 1.0.0.102, DGN2200Bv4 before 1.0.0.102, EX3700 before 1.0.0.70, EX3800 before 1.0.0.70, EX6000 before 1.0.0.30, EX6100 before 1.0.2.22, EX6120 before 1.0.0.40, EX6130 before 1.0.0.22, EX6150 before 1.0.0.38, EX6200 before 1.0.3.86, EX7000 before 1.0.0.64, R6250 before 1.0.4.20, R6300v2 before 1.0.4.22, R6400 before 1.0.1.32, R6400v2 before 1.0.2.52, R6700 before 1.0.1.44, R6900 before 1.0.1.44, R6900P before 1.3.0.18, R7000 before 1.0.9.28, R7000P before 1.3.0.18, R7300DST before 1.0.0.62, R7900 before 1.0.2.10, R7900P before 1.3.0.10, R8000 before 1.0.4.12, R8000P before 1.3.0.10, R8300 before 1.0.2.116, R8500 before 1.0.2.116, WN2500RPv2 before 1.0.1.52, WNDR3400v3 before 1.0.1.18, and WNR3500Lv2 before 1.2.0.46.

Determinados dispositivos NETGEAR están afectados por un desbordamiento del búfer por parte de un usuario autenticado. Esto afecta a D6220 versiones anteriores a 1.0.0.38, D6400 versiones anteriores a 1.0.0.74, D7000v2 versiones anteriores a 1.0.0.74, D8500 versiones anteriores a 1.0.3.39, DGN2200v4 versiones anteriores a 1.0.0.102, DGN2200Bv4 versiones anteriores a 1.0.0.102, EX3700 versiones anteriores a 1.0.0.70, EX3800 versiones anteriores a 1.0.0.70, EX6000 versiones anteriores a 1.0.0.30, EX6100 versiones anteriores a 1.0.2.22, EX6120 versiones anteriores a 1.0.0.40, EX6130 versiones anteriores a 1.0.0.22, EX6150 versiones anteriores a 1.0.0.38, EX6200 versiones anteriores a 1.0.3.86, EX7000 versiones anteriores a 1.0.0.64, R6250 versiones anteriores a 1.0.4.20, R6300v2 versiones anteriores a 1.0.4.22, R6400 versiones anteriores a 1.0.1.32, R6400v2 versiones anteriores a 1.0.2.52, R6700 versiones anteriores a 1.0.1.44, R6900 versiones anteriores a 1.0.1.44, R6900P versiones anteriores a 1.3.0.18, R7000 versiones anteriores a 1.0.9.28, R7000P versiones anteriores a 1.3.0.18, R7300DST versiones anteriores a 1.0. 0.62, R7900 versiones anteriores a 1.0.2.10, R7900P versiones anteriores a 1.3.0.10, R8000 versiones anteriores a 1.0.4.12, R8000P versiones anteriores a 1.3.0.10, R8300 versiones anteriores a 1.0.2.116, R8500 versiones anteriores a 1.0.2.116, WN2500RPv2 versiones anteriores a 1.0.1.52, WNDR3400v3 versiones anteriores a 1.0.1.18, y WNR3500Lv2 versiones anteriores a 1.2.0.46.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-04-20 CVE Reserved
  • 2020-04-27 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Netgear
Search vendor "Netgear"
D6220 Firmware
Search vendor "Netgear" for product "D6220 Firmware"
< 1.0.0.38
Search vendor "Netgear" for product "D6220 Firmware" and version " < 1.0.0.38"
-
Affected
in Netgear
Search vendor "Netgear"
D6220
Search vendor "Netgear" for product "D6220"
--
Safe
Netgear
Search vendor "Netgear"
D6400 Firmware
Search vendor "Netgear" for product "D6400 Firmware"
< 1.0.0.74
Search vendor "Netgear" for product "D6400 Firmware" and version " < 1.0.0.74"
-
Affected
in Netgear
Search vendor "Netgear"
D6400
Search vendor "Netgear" for product "D6400"
--
Safe
Netgear
Search vendor "Netgear"
D7000 Firmware
Search vendor "Netgear" for product "D7000 Firmware"
< 1.0.0.74
Search vendor "Netgear" for product "D7000 Firmware" and version " < 1.0.0.74"
-
Affected
in Netgear
Search vendor "Netgear"
D7000
Search vendor "Netgear" for product "D7000"
v2
Search vendor "Netgear" for product "D7000" and version "v2"
-
Safe
Netgear
Search vendor "Netgear"
D8500 Firmware
Search vendor "Netgear" for product "D8500 Firmware"
< 1.0.3.39
Search vendor "Netgear" for product "D8500 Firmware" and version " < 1.0.3.39"
-
Affected
in Netgear
Search vendor "Netgear"
D8500
Search vendor "Netgear" for product "D8500"
--
Safe
Netgear
Search vendor "Netgear"
Dgn2200 Firmware
Search vendor "Netgear" for product "Dgn2200 Firmware"
< 1.0.0.102
Search vendor "Netgear" for product "Dgn2200 Firmware" and version " < 1.0.0.102"
-
Affected
in Netgear
Search vendor "Netgear"
Dgn2200
Search vendor "Netgear" for product "Dgn2200"
v4
Search vendor "Netgear" for product "Dgn2200" and version "v4"
-
Safe
Netgear
Search vendor "Netgear"
Dgn2200b Firmware
Search vendor "Netgear" for product "Dgn2200b Firmware"
< 1.0.0.102
Search vendor "Netgear" for product "Dgn2200b Firmware" and version " < 1.0.0.102"
-
Affected
in Netgear
Search vendor "Netgear"
Dgn2200b
Search vendor "Netgear" for product "Dgn2200b"
v4
Search vendor "Netgear" for product "Dgn2200b" and version "v4"
-
Safe
Netgear
Search vendor "Netgear"
Ex3700 Firmware
Search vendor "Netgear" for product "Ex3700 Firmware"
< 1.0.0.70
Search vendor "Netgear" for product "Ex3700 Firmware" and version " < 1.0.0.70"
-
Affected
in Netgear
Search vendor "Netgear"
Ex3700
Search vendor "Netgear" for product "Ex3700"
--
Safe
Netgear
Search vendor "Netgear"
Ex3800 Firmware
Search vendor "Netgear" for product "Ex3800 Firmware"
< 1.0.0.70
Search vendor "Netgear" for product "Ex3800 Firmware" and version " < 1.0.0.70"
-
Affected
in Netgear
Search vendor "Netgear"
Ex3800
Search vendor "Netgear" for product "Ex3800"
--
Safe
Netgear
Search vendor "Netgear"
Ex6000 Firmware
Search vendor "Netgear" for product "Ex6000 Firmware"
< 1.0.0.30
Search vendor "Netgear" for product "Ex6000 Firmware" and version " < 1.0.0.30"
-
Affected
in Netgear
Search vendor "Netgear"
Ex6000
Search vendor "Netgear" for product "Ex6000"
--
Safe
Netgear
Search vendor "Netgear"
Ex6100 Firmware
Search vendor "Netgear" for product "Ex6100 Firmware"
< 1.0.2.22
Search vendor "Netgear" for product "Ex6100 Firmware" and version " < 1.0.2.22"
-
Affected
in Netgear
Search vendor "Netgear"
Ex6100
Search vendor "Netgear" for product "Ex6100"
--
Safe
Netgear
Search vendor "Netgear"
Ex6120 Firmware
Search vendor "Netgear" for product "Ex6120 Firmware"
< 1.0.0.40
Search vendor "Netgear" for product "Ex6120 Firmware" and version " < 1.0.0.40"
-
Affected
in Netgear
Search vendor "Netgear"
Ex6120
Search vendor "Netgear" for product "Ex6120"
--
Safe
Netgear
Search vendor "Netgear"
Ex6130 Firmware
Search vendor "Netgear" for product "Ex6130 Firmware"
< 1.0.0.22
Search vendor "Netgear" for product "Ex6130 Firmware" and version " < 1.0.0.22"
-
Affected
in Netgear
Search vendor "Netgear"
Ex6130
Search vendor "Netgear" for product "Ex6130"
--
Safe
Netgear
Search vendor "Netgear"
Ex6150 Firmware
Search vendor "Netgear" for product "Ex6150 Firmware"
< 1.0.0.38
Search vendor "Netgear" for product "Ex6150 Firmware" and version " < 1.0.0.38"
-
Affected
in Netgear
Search vendor "Netgear"
Ex6150
Search vendor "Netgear" for product "Ex6150"
--
Safe
Netgear
Search vendor "Netgear"
Ex6200 Firmware
Search vendor "Netgear" for product "Ex6200 Firmware"
< 1.0.3.86
Search vendor "Netgear" for product "Ex6200 Firmware" and version " < 1.0.3.86"
-
Affected
in Netgear
Search vendor "Netgear"
Ex6200
Search vendor "Netgear" for product "Ex6200"
--
Safe
Netgear
Search vendor "Netgear"
Ex7000 Firmware
Search vendor "Netgear" for product "Ex7000 Firmware"
< 1.0.0.64
Search vendor "Netgear" for product "Ex7000 Firmware" and version " < 1.0.0.64"
-
Affected
in Netgear
Search vendor "Netgear"
Ex7000
Search vendor "Netgear" for product "Ex7000"
--
Safe
Netgear
Search vendor "Netgear"
R6250 Firmware
Search vendor "Netgear" for product "R6250 Firmware"
< 1.0.4.20
Search vendor "Netgear" for product "R6250 Firmware" and version " < 1.0.4.20"
-
Affected
in Netgear
Search vendor "Netgear"
R6250
Search vendor "Netgear" for product "R6250"
--
Safe
Netgear
Search vendor "Netgear"
R6300 Firmware
Search vendor "Netgear" for product "R6300 Firmware"
< 1.0.4.22
Search vendor "Netgear" for product "R6300 Firmware" and version " < 1.0.4.22"
-
Affected
in Netgear
Search vendor "Netgear"
R6300
Search vendor "Netgear" for product "R6300"
v2
Search vendor "Netgear" for product "R6300" and version "v2"
-
Safe
Netgear
Search vendor "Netgear"
R6400 Firmware
Search vendor "Netgear" for product "R6400 Firmware"
< 1.0.1.32
Search vendor "Netgear" for product "R6400 Firmware" and version " < 1.0.1.32"
-
Affected
in Netgear
Search vendor "Netgear"
R6400
Search vendor "Netgear" for product "R6400"
--
Safe
Netgear
Search vendor "Netgear"
R6400 Firmware
Search vendor "Netgear" for product "R6400 Firmware"
< 1.0.2.52
Search vendor "Netgear" for product "R6400 Firmware" and version " < 1.0.2.52"
-
Affected
in Netgear
Search vendor "Netgear"
R6400
Search vendor "Netgear" for product "R6400"
v2
Search vendor "Netgear" for product "R6400" and version "v2"
-
Safe
Netgear
Search vendor "Netgear"
R6700 Firmware
Search vendor "Netgear" for product "R6700 Firmware"
< 1.0.1.44
Search vendor "Netgear" for product "R6700 Firmware" and version " < 1.0.1.44"
-
Affected
in Netgear
Search vendor "Netgear"
R6700
Search vendor "Netgear" for product "R6700"
--
Safe
Netgear
Search vendor "Netgear"
R6900 Firmware
Search vendor "Netgear" for product "R6900 Firmware"
< 1.0.1.44
Search vendor "Netgear" for product "R6900 Firmware" and version " < 1.0.1.44"
-
Affected
in Netgear
Search vendor "Netgear"
R6900
Search vendor "Netgear" for product "R6900"
--
Safe
Netgear
Search vendor "Netgear"
R6900p Firmware
Search vendor "Netgear" for product "R6900p Firmware"
< 1.3.0.18
Search vendor "Netgear" for product "R6900p Firmware" and version " < 1.3.0.18"
-
Affected
in Netgear
Search vendor "Netgear"
R6900p
Search vendor "Netgear" for product "R6900p"
--
Safe
Netgear
Search vendor "Netgear"
R7000 Firmware
Search vendor "Netgear" for product "R7000 Firmware"
< 1.0.9.28
Search vendor "Netgear" for product "R7000 Firmware" and version " < 1.0.9.28"
-
Affected
in Netgear
Search vendor "Netgear"
R7000
Search vendor "Netgear" for product "R7000"
--
Safe
Netgear
Search vendor "Netgear"
R7000p Firmware
Search vendor "Netgear" for product "R7000p Firmware"
< 1.3.0.18
Search vendor "Netgear" for product "R7000p Firmware" and version " < 1.3.0.18"
-
Affected
in Netgear
Search vendor "Netgear"
R7000p
Search vendor "Netgear" for product "R7000p"
--
Safe
Netgear
Search vendor "Netgear"
R7300dst Firmware
Search vendor "Netgear" for product "R7300dst Firmware"
< 1.0.0.62
Search vendor "Netgear" for product "R7300dst Firmware" and version " < 1.0.0.62"
-
Affected
in Netgear
Search vendor "Netgear"
R7300dst
Search vendor "Netgear" for product "R7300dst"
--
Safe
Netgear
Search vendor "Netgear"
R7900 Firmware
Search vendor "Netgear" for product "R7900 Firmware"
< 1.0.2.10
Search vendor "Netgear" for product "R7900 Firmware" and version " < 1.0.2.10"
-
Affected
in Netgear
Search vendor "Netgear"
R7900
Search vendor "Netgear" for product "R7900"
--
Safe
Netgear
Search vendor "Netgear"
R7900p Firmware
Search vendor "Netgear" for product "R7900p Firmware"
< 1.3.0.10
Search vendor "Netgear" for product "R7900p Firmware" and version " < 1.3.0.10"
-
Affected
in Netgear
Search vendor "Netgear"
R7900p
Search vendor "Netgear" for product "R7900p"
--
Safe
Netgear
Search vendor "Netgear"
R8000 Firmware
Search vendor "Netgear" for product "R8000 Firmware"
< 1.0.4.12
Search vendor "Netgear" for product "R8000 Firmware" and version " < 1.0.4.12"
-
Affected
in Netgear
Search vendor "Netgear"
R8000
Search vendor "Netgear" for product "R8000"
--
Safe
Netgear
Search vendor "Netgear"
R8000p Firmware
Search vendor "Netgear" for product "R8000p Firmware"
< 1.3.0.10
Search vendor "Netgear" for product "R8000p Firmware" and version " < 1.3.0.10"
-
Affected
in Netgear
Search vendor "Netgear"
R8000p
Search vendor "Netgear" for product "R8000p"
--
Safe
Netgear
Search vendor "Netgear"
R8300 Firmware
Search vendor "Netgear" for product "R8300 Firmware"
< 1.0.2.116
Search vendor "Netgear" for product "R8300 Firmware" and version " < 1.0.2.116"
-
Affected
in Netgear
Search vendor "Netgear"
R8300
Search vendor "Netgear" for product "R8300"
--
Safe
Netgear
Search vendor "Netgear"
R8500 Firmware
Search vendor "Netgear" for product "R8500 Firmware"
< 1.0.2.116
Search vendor "Netgear" for product "R8500 Firmware" and version " < 1.0.2.116"
-
Affected
in Netgear
Search vendor "Netgear"
R8500
Search vendor "Netgear" for product "R8500"
--
Safe
Netgear
Search vendor "Netgear"
Wn2500rp Firmware
Search vendor "Netgear" for product "Wn2500rp Firmware"
< 1.0.1.52
Search vendor "Netgear" for product "Wn2500rp Firmware" and version " < 1.0.1.52"
-
Affected
in Netgear
Search vendor "Netgear"
Wn2500rp
Search vendor "Netgear" for product "Wn2500rp"
v2
Search vendor "Netgear" for product "Wn2500rp" and version "v2"
-
Safe
Netgear
Search vendor "Netgear"
Wndr3400 Firmware
Search vendor "Netgear" for product "Wndr3400 Firmware"
< 1.0.1.18
Search vendor "Netgear" for product "Wndr3400 Firmware" and version " < 1.0.1.18"
-
Affected
in Netgear
Search vendor "Netgear"
Wndr3400
Search vendor "Netgear" for product "Wndr3400"
v3
Search vendor "Netgear" for product "Wndr3400" and version "v3"
-
Safe
Netgear
Search vendor "Netgear"
Wnr3500l Firmware
Search vendor "Netgear" for product "Wnr3500l Firmware"
< 1.2.0.46
Search vendor "Netgear" for product "Wnr3500l Firmware" and version " < 1.2.0.46"
-
Affected
in Netgear
Search vendor "Netgear"
Wnr3500l
Search vendor "Netgear" for product "Wnr3500l"
v2
Search vendor "Netgear" for product "Wnr3500l" and version "v2"
-
Safe