Linksys E2000 1.0.06 POST Request apply.cgi WL_atten_bb/WL_atten_radio/WL_atten_ctl command injection

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linksys E2000 1.0.06. The affected element is an unknown function of the file apply.cgi of the component POST Request Handler. The manipulation of the argument WL_atten_bb/WL_atten_radio/WL_atten_ctl leads to command injection. This vulnerability is uniquely identified as CVE-2023-31740. No exploit exists.

Detailsinfo

A vulnerability was found in Linksys E2000 1.0.06 (Router Operating System). It has been rated as critical. This issue affects some unknown processing of the file apply.cgi of the component POST Request Handler. The manipulation of the argument WL_atten_bb/WL_atten_radio/WL_atten_ctl with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

There is a command injection vulnerability in the Linksys E2000 router with firmware version 1.0.06. If an attacker gains web management privileges, they can inject commands into the post request parameters WL_atten_bb, WL_atten_radio, and WL_atten_ctl in the apply.cgi interface, thereby gaining shell privileges.

The weakness was disclosed 05/23/2023. The identification of this vulnerability is CVE-2023-31740 since 04/29/2023. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-36031). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

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

NVD Base Score: 7.2
NVD Vector: 🔍

CNA Base Score: 7.2
CNA Vector: 🔍

ADP CISA Base Score: 7.2
ADP CISA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

04/29/2023 🔍
05/23/2023 +24 days 🔍
05/23/2023 +0 days 🔍
07/09/2026 +1143 days 🔍

Sourcesinfo

Vendor: linksys.com

Advisory: linksys.com
Status: Not defined

CVE: CVE-2023-31740 (🔍)
GCVE (CVE): GCVE-0-2023-31740
GCVE (VulDB): GCVE-100-229697
EUVD: 🔍

Entryinfo

Created: 05/23/2023 07:30
Updated: 07/09/2026 16:53
Changes: 05/23/2023 07:30 (40), 06/16/2023 09:25 (1), 06/16/2023 09:27 (11), 01/21/2025 20:46 (26), 12/28/2025 04:42 (1), 07/09/2026 16:53 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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