4.9
MEDIUM
CVE-2018-21142
NETGEAR Devices Denial of Service Vulnerability
Description

Certain NETGEAR devices are affected by denial of service. This affects R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7800 before 1.0.2.42, R8900 before 1.0.3.10, R9000 before 1.0.3.10, WNDR3700v4 before 1.0.2.96, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.54, WNDR4500v3 before 1.0.0.54, and WNR2000v5 before 1.0.0.64.

INFO

Published Date :

April 23, 2020, 9:15 p.m.

Last Modified :

Nov. 21, 2024, 4:03 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

1.2
Affected Products

The following products are affected by CVE-2018-21142 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Netgear wndr4500_firmware
2 Netgear r7800_firmware
3 Netgear r8900_firmware
4 Netgear r9000_firmware
5 Netgear r7500_firmware
6 Netgear wndr3700_firmware
7 Netgear wndr4300_firmware
8 Netgear wnr2000_firmware
9 Netgear r6100_firmware
10 Netgear wndr3700
11 Netgear wndr4500
12 Netgear r6100
13 Netgear r7500
14 Netgear wndr4300
15 Netgear wnr2000
16 Netgear r9000
17 Netgear r8900
18 Netgear r7800
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-21142.

URL Resource
https://kb.netgear.com/000059491/Security-Advisory-for-Denial-of-Service-on-Some-Routers-PSV-2017-3169 Vendor Advisory
https://kb.netgear.com/000059491/Security-Advisory-for-Denial-of-Service-on-Some-Routers-PSV-2017-3169 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-21142 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-21142 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://kb.netgear.com/000059491/Security-Advisory-for-Denial-of-Service-on-Some-Routers-PSV-2017-3169
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    May. 01, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://kb.netgear.com/000059491/Security-Advisory-for-Denial-of-Service-on-Some-Routers-PSV-2017-3169 No Types Assigned https://kb.netgear.com/000059491/Security-Advisory-for-Denial-of-Service-on-Some-Routers-PSV-2017-3169 Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r6100_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.1.22 OR cpe:2.3:h:netgear:r6100:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r7500_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.122 OR cpe:2.3:h:netgear:r7500:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.2.42 OR cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.3.10 OR cpe:2.3:h:netgear:r8900:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.3.10 OR cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.2.96 OR cpe:2.3:h:netgear:wndr3700:v4:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.2.98 OR cpe:2.3:h:netgear:wndr4300:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:wndr4500_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.54 OR cpe:2.3:h:netgear:wndr4500:v3:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:wnr2000_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.64 OR cpe:2.3:h:netgear:wnr2000:v5:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.54 OR cpe:2.3:h:netgear:wndr4300:v2:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-21142 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-21142 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.08 }} 0.00%

score

0.33067

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability