Netgear WNDR4500v3 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 D7800, R7500v2, R7800, R8900, R9000, WNDR4300v2 and WNDR4500v3 and classified as critical. Affected by this issue is some unknown functionality. Executing a manipulation can lead to stack-based overflow. The identification of this vulnerability is CVE-2018-21147. The attack needs to be done within the local network. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Netgear D7800, R7500v2, R7800, R8900, R9000, WNDR4300v2 and WNDR4500v3 (Wireless LAN Software). 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 D7800 before 1.0.1.34, R7500v2 before 1.0.3.26, R7800 before 1.0.2.42, R8900 before 1.0.3.10, R9000 before 1.0.3.10, WNDR4300v2 before 1.0.0.54, and WNDR4500v3 before 1.0.0.54.

The weakness was shared 04/21/2020 (Website). The advisory is shared for download at kb.netgear.com. This vulnerability was named CVE-2018-21147 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

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 🔍
04/21/2020 +1 days 🔍
04/22/2020 +1 days 🔍
06/01/2024 +1501 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: kb.netgear.com
Status: Not defined

CVE: CVE-2018-21147 (🔍)
GCVE (CVE): GCVE-0-2018-21147
GCVE (VulDB): GCVE-100-154144

Entryinfo

Created: 04/22/2020 09:47
Updated: 06/01/2024 10:01
Changes: 04/22/2020 09:47 (36), 04/22/2020 09:52 (12), 06/01/2024 10:01 (34)
Complete: 🔍
Cache ID: 216::103

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