Medium severity · published Apr 27, 2020
CVE-2018-21171
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user
6.8
CVSS
0.7%
EPSS
No
On KEV
Description
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R7800 before 1.0.2.40, R9000 before 1.0.3.6, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.98.
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)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
D6100 Firmware · Netgear
before 1.0.0.57 · source: NVD
RF
R7800 Firmware · Netgear
before 1.0.2.40 · source: NVD
RF
R9000 Firmware · Netgear
before 1.0.2.40 · source: NVD
WF
Wndr3700 Firmware · Netgear
before 1.0.2.92 · source: NVD
WF
Wndr4300 Firmware · Netgear
before 1.0.2.98 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-21171
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-21171
Vendor Advisory
https://kb.netgear.com/000055187/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2632
More from D6100 Firmware
9.8
CVE-2016-10174
NETGEAR WNR2000v5 Router Buffer Overflow Vulnerability
8.8
CVE-2018-21220
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker
8.8
CVE-2018-21219
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker
8.8
CVE-2018-21218
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker
8.8
CVE-2018-21217
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker