Elecom WRH-733GBK/WRH-733GWH up to 1.02.9 buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Elecom WRH-733GBK and WRH-733GWH up to 1.02.9. It has been declared as critical. Affected by this vulnerability is an unknown functionality. Executing a manipulation can lead to buffer overflow. This vulnerability is handled as CVE-2021-20852. The attack can only be done within the local network. There is not any exploit available.

Detailsinfo

A vulnerability was found in Elecom WRH-733GBK and WRH-733GWH up to 1.02.9. It has been declared as critical. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 12/01/2021. The advisory is shared for download at jvn.jp. This vulnerability was named CVE-2021-20852 since 12/17/2020. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / 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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
12/01/2021 +349 days 🔍
12/01/2021 +0 days 🔍
12/04/2021 +3 days 🔍

Sourcesinfo

Advisory: jvn.jp
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-20852 (🔍)
GCVE (CVE): GCVE-0-2021-20852
GCVE (VulDB): GCVE-100-187396

Entryinfo

Created: 12/01/2021 09:51
Updated: 12/04/2021 18:49
Changes: 12/01/2021 09:51 (37), 12/04/2021 18:42 (1), 12/04/2021 18:49 (18)
Complete: 🔍
Cache ID: 216::103

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