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 classified as critical has been found in Netgear D7800, R6100, R7500v2, R7800, R9000, WNDR3700v4, WNDR4300, WNDR4300v2, WNDR4500v3 and WNR2000v5. This affects an unknown part. The manipulation leads to stack-based overflow. This vulnerability is referenced as CVE-2018-21186. The attack needs to be initiated within the local network. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Netgear D7800, R6100, R7500v2, R7800, R9000, WNDR3700v4, WNDR4300, WNDR4300v2, WNDR4500v3 and WNR2000v5 (Wireless LAN Software). It has been rated as critical. This issue affects some unknown processing. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to 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). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D7800 before 1.0.1.30, R6100 before 1.0.1.20, R7500v2 before 1.0.3.24, 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.

The weakness was published 04/28/2020 (Website). It is possible to read the advisory at kb.netgear.com. The identification of this vulnerability is CVE-2018-21186 since 04/20/2020. Access to the local network is required for this attack to succeed. Required for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

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-2018-21186 (🔍)
GCVE (CVE): GCVE-0-2018-21186
GCVE (VulDB): GCVE-100-154475

Entryinfo

Created: 04/28/2020 22:14
Updated: 06/03/2024 14:36
Changes: 04/28/2020 22:14 (36), 04/28/2020 22:19 (12), 10/13/2020 16:53 (1), 10/13/2020 16:57 (1), 06/03/2024 14:36 (33)
Complete: 🔍
Cache ID: 216::103

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