8.8
HIGH
CVE-2019-20640
NETGEAR Stack-Based Buffer Overflow Vulnerability
Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.76, D6000 before 1.0.0.76, D6200 before 1.1.00.32, D7000 before 1.0.1.68, JR6150 before 1.0.1.18, PR2000 before 1.0.0.28, R6020 before 1.0.0.38, R6050 before 1.0.1.18, R6080 before 1.0.0.38, R6120 before 1.0.0.46, R6220 before 1.1.0.80, R6260 before 1.1.0.40, R6700v2 before 1.2.0.36, R6800 before 1.2.0.36, R6900v2 before 1.2.0.36, WNR2020 before 1.1.0.62, and XR500 before 2.3.2.32.

INFO

Published Date :

April 15, 2020, 6:15 p.m.

Last Modified :

April 22, 2020, 1:44 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2019-20640 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 d3600_firmware
2 Netgear d6000_firmware
3 Netgear d6200_firmware
4 Netgear d7000_firmware
5 Netgear jr6150_firmware
6 Netgear pr2000_firmware
7 Netgear r6020_firmware
8 Netgear r6050_firmware
9 Netgear r6080_firmware
10 Netgear r6120_firmware
11 Netgear r6220_firmware
12 Netgear r6260_firmware
13 Netgear r6700_firmware
14 Netgear r6800_firmware
15 Netgear r6900_firmware
16 Netgear xr500_firmware
17 Netgear wnr2020_firmware
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-2019-20640.

URL Resource
https://kb.netgear.com/000061504/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0304 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-2019-20640 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-20640 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 [email protected]

    May. 14, 2024

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

    Apr. 22, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://kb.netgear.com/000061504/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0304 No Types Assigned https://kb.netgear.com/000061504/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0304 Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:d3600_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.76 OR cpe:2.3:h:netgear:d3600:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:d6000_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.76 OR cpe:2.3:h:netgear:d6000:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:d6200_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.1.00.32 OR cpe:2.3:h:netgear:d6200:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:d7000_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.1.68 OR cpe:2.3:h:netgear:d7000:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:jr6150_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.1.18 OR cpe:2.3:h:netgear:jr6150:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:pr2000_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.28 OR cpe:2.3:h:netgear:pr2000:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r6020_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.38 OR cpe:2.3:h:netgear:r6020:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r6050_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.1.18 OR cpe:2.3:h:netgear:r6050:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r6080_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.38 OR cpe:2.3:h:netgear:r6080:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r6120_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.46 OR cpe:2.3:h:netgear:r6120:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.1.0.80 OR cpe:2.3:h:netgear:r6220:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r6260_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.1.0.40 OR cpe:2.3:h:netgear:r6260:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r6700_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.2.0.36 OR cpe:2.3:h:netgear:r6700:v2:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r6800_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.2.0.36 OR cpe:2.3:h:netgear:r6800:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:r6900_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.2.0.36 OR cpe:2.3:h:netgear:r6900:v2:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:wnr2020_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.1.0.62 OR cpe:2.3:h:netgear:wnr2020:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netgear:xr500_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.3.2.32 OR cpe:2.3:h:netgear:xr500:-:*:*:*:*:*:*:*
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-2019-20640 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-2019-20640 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

0.32361

percentile

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