High severity · published Apr 27, 2020
CVE-2018-21170
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker
8.8
CVSS
0.7%
EPSS
No
On KEV
Description
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects EX2700 before 1.0.1.28, R7800 before 1.0.2.40, WN2000RPTv3 before 1.0.1.20, WN3000RPv3 before 1.0.2.50, and WN3100RPv2 before 1.0.0.56.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EF
Ex2700 Firmware · Netgear
before 1.0.1.28 · source: NVD
RF
R7800 Firmware · Netgear
before 1.0.2.40 · source: NVD
WF
Wn2000rpt Firmware · Netgear
before 1.0.1.20 · source: NVD
WF
Wn3000rp Firmware · Netgear
before 1.0.2.50 · source: NVD
WF
Wn3100rp Firmware · Netgear
before 1.0.0.56 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-21170
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-21170
Vendor Advisory
https://kb.netgear.com/000055188/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Extenders-PSV-2017-2638
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