6.8
MEDIUM
CVE-2018-21197
NETGEAR Device Stack-Based Buffer Overflow Vulnerability
Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D7800 before 1.0.1.34, R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7500v2 before 1.0.3.26, R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.92, WNDR4300 before 1.0.2.94, WNDR4300v2 before 1.0.0.50, WNDR4500v3 before 1.0.0.50, and WNR2000v5 before 1.0.0.62.

INFO

Published Date :

April 28, 2020, 4:15 p.m.

Last Modified :

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

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.9
Affected Products

The following products are affected by CVE-2018-21197 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 r9000_firmware
4 Netgear d7800_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 d7800
13 Netgear r6100
14 Netgear r7500
15 Netgear wndr4300
16 Netgear wnr2000
17 Netgear r9000
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-2018-21197.

URL Resource
https://kb.netgear.com/000055152/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2596 Vendor Advisory
https://kb.netgear.com/000055152/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2596 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-2018-21197 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-21197 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/000055152/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2596
  • CVE Modified by [email protected]

    May. 14, 2024

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

    May. 05, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:A/AC:L/Au:S/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://kb.netgear.com/000055152/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2596 No Types Assigned https://kb.netgear.com/000055152/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2596 Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.1.34 OR cpe:2.3:h:netgear:d7800:-:*:*:*:*:*:*:*
    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) 1.0.3.26 OR cpe:2.3:h:netgear:r7500:v2:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.2.40 OR cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.2.52 OR cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.2.92 OR cpe:2.3:h:netgear:wndr3700:v4:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.2.94 OR cpe:2.3:h:netgear:wndr4300:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.50 OR cpe:2.3:h:netgear:wndr4300:v2:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:wndr4500_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.50 OR cpe:2.3:h:netgear:wndr4500:v3:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:wnr2000_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.62 OR cpe:2.3:h:netgear:wnr2000:v5:*:*:*:*:*:*:*
    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:-:*:*:*:*:*:*:*
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-2018-21197 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-2018-21197 weaknesses.

Exploit Prediction

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

0.04 }} 0.00%

score

0.10264

percentile

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