Critical severity · published Dec 30, 2020
CVE-2020-35795
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker
9.8
CVSS
1.2%
EPSS
No
On KEV
Description
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects AC2100 before 1.2.0.72, AC2400 before 1.2.0.72, AC2600 before 1.2.0.72, CBK40 before 2.5.0.10, CBR40 before 2.5.0.10, D7800 before 1.0.1.58, EAX20 before 1.0.0.36, EAX80 before 1.0.1.62, EX7500 before 1.0.0.68, MK62 before 1.0.5.102, MR60 before 1.0.5.102, MS60 before 1.0.5.102, R6120 before 1.0.0.70, R6220 before 1.1.0.100, R6230 before 1.1.0.100, R6260 before 1.1.0.76, R6330 before 1.1.0.76, R6350 before 1.1.0.76, R6400 before 1.0.1.62, R6400v2 before 1.0.4.98, R6700 before 1.0.2.16, R6700v2 before 1.2.0.72, R6700v3 before 1.0.4.98, R6800 before 1.2.0.72, R6850 before 1.1.0.76, R6900P before 1.3.2.124, R6900 before 1.0.2.16, R6900v2 before 1.2.0.72, R7000 before 1.0.11.106, R7000P before 1.3.2.124, R7200 before 1.2.0.72, R7350 before 1.2.0.72, R7400 before 1.2.0.72, R7450 before 1.2.0.72, R7800 before 1.0.2.74, R7850 before 1.0.5.60, R7900 before 1.0.4.26, R7900P before 1.4.1.62, R7960P before 1.4.1.62, R8000 before 1.0.4.58, R8000P before 1.4.1.62, R8900 before 1.0.5.24, R9000 before 1.0.5.24, RAX120 before 1.0.1.136, RAX15 before 1.0.1.64, RAX20 before 1.0.1.64, RAX200 before 1.0.2.102, RAX45 before 1.0.2.64, RAX50 before 1.0.2.64, RAX75 before 1.0.3.102, RAX80 before 1.0.3.102, RBK12 before 2.6.1.44, RBR10 before 2.6.1.44, RBS10 before 2.6.1.44, RBK20 before 2.6.1.38, RBR20 before 2.6.1.36, RBS20 before 2.6.1.38, RBK40 before 2.6.1.38, RBR40 before 2.6.1.36, RBS40 before 2.6.1.38, RBK50 before 2.6.1.40, RBR50 before 2.6.1.40, RBS50 before 2.6.1.40, RBK752 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK752 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK842 before 3.2.16.6, RBR840 before 3.2.16.6, RBS840 before 3.2.16.6, RBK852 before 3.2.16.6, RBR850 before 3.2.16.6, RBS850 before 3.2.16.6, RS400 before 1.5.0.48, XR300 before 1.0.3.50, XR450 before 2.3.2.66, XR500 before 2.3.2.66, and XR700 before 1.0.1.34.
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)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
Ac2100 Firmware · Netgear
before 1.2.0.72 · source: NVD
AF
Ac2400 Firmware · Netgear
before 1.2.0.72 · source: NVD
AF
Ac2600 Firmware · Netgear
before 1.2.0.72 · source: NVD
CF
Cbk40 Firmware · Netgear
before 2.5.0.10 · source: NVD
CF
Cbr40 Firmware · Netgear
before 2.5.0.10 · source: NVD
DF
D7800 Firmware · Netgear
before 1.0.1.58 · source: NVD
EF
Eax20 Firmware · Netgear
before 1.0.0.36 · source: NVD
EF
Eax80 Firmware · Netgear
before 1.0.1.62 · source: NVD
EF
Ex7500 Firmware · Netgear
before 1.0.0.68 · source: NVD
MF
Mk62 Firmware · Netgear
before 1.0.5.102 · source: NVD
MF
Mr60 Firmware · Netgear
before 1.0.5.102 · source: NVD
MF
Ms60 Firmware · Netgear
before 1.0.5.102 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-35795
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-35795
Vendor Advisory
https://kb.netgear.com/000062735/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-Range-Extenders-and-Orbi-WiFi-Systems-PSV-2020-0154
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