Netgear WNR2000v5 stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Netgear D6100, R6100, R7800, WNDR3700v4, WNDR4300, WNDR4300v2, WNDR4500v3 and WNR2000v5 and classified as critical. The impacted element is an unknown function. Executing a manipulation can lead to stack-based overflow. This vulnerability is registered as CVE-2018-21191. The attack requires access to the local network. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Netgear D6100, R6100, R7800, WNDR3700v4, WNDR4300, WNDR4300v2, WNDR4500v3 and WNR2000v5 (Wireless LAN Software) and classified as critical. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R6100 before 1.0.1.20, R7800 before 1.0.2.40, 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.

The weakness was published 04/28/2020 (Website). The advisory is shared for download at kb.netgear.com. This vulnerability was named CVE-2018-21191 since 04/20/2020. The attack needs to be initiated within the local network. A single authentication is needed for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CNA Base Score: 6.8
CNA Vector (MITRE): 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/20/2020 🔍
04/28/2020 +8 days 🔍
04/28/2020 +0 days 🔍
06/03/2024 +1497 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: kb.netgear.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-21191 (🔍)
GCVE (CVE): GCVE-0-2018-21191
GCVE (VulDB): GCVE-100-154480

Entryinfo

Created: 04/28/2020 22:19
Updated: 06/03/2024 14:47
Changes: 04/28/2020 22:19 (36), 04/28/2020 22:24 (12), 10/13/2020 18:18 (1), 10/13/2020 18:27 (1), 06/03/2024 14:47 (33)
Complete: 🔍
Cache ID: 216::103

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