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A3700r Firmware CVE-2024-7156

MEDIUM
Information Exposure (CWE-200)
2024-07-28 cna@vuldb.com
6.9
CVSS 4.0 · Vendor: vuldb
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK

2 techniques across 2 tactics: Collection, Discovery

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 6.9 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A remote attacker could access sensitive data that should not be disclosed by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 13.3% exploitation probability (EPSS)

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AnalysisAI

A vulnerability was found in TOTOLINK A3700R 9.1.2u.5822_B20200513 and classified as problematic. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. A vulnerability was found in TOTOLINK A3700R 9.1.2u.5822_B20200513 and classified as problematic. Affected by this issue is some unknown functionality of the file /cgi-bin/ExportSettings.sh of the component apmib Configuration Handler. The manipulation leads to information disclosure. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-272570 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way. Affected products include: Totolink A3700R Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (vuldb) PRIMARY 6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (vuldb) · only source for this CVE.

CVSS VectorVendor: vuldb

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
None
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

DescriptionCVE.org

A vulnerability was found in TOTOLINK A3700R 9.1.2u.5822_B20200513 and classified as problematic. Affected by this issue is some unknown functionality of the file /cgi-bin/ExportSettings.sh of the component apmib Configuration Handler. The manipulation leads to information disclosure. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-272570 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Threat Intelligence Overview

EPSS Score
13.3%
Top 4% exploitable
Exploit
POC
Public exploit code exists
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 13.3%
Patch available No
Active threat Yes
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

67
Low Medium High Critical
KEV: 0
EPSS: +13
CVSS: +34
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:o:totolink:a3700r_firmware:9.1.2u.5822_b20200513:*:*:*:*:*:*:*
CVE-2023-52028 CRITICAL POC
9.8 Jan 11

TOTOlink A3700R v9.1.2u.5822_B20200513 was discovered to contain a remote command execution (RCE) vulnerability via the

CVE-2023-52029 CRITICAL POC
9.8 Jan 11

TOTOlink A3700R v9.1.2u.5822_B20200513 was discovered to contain a remote command execution (RCE) vulnerability via the

CVE-2023-52027 CRITICAL POC
9.8 Jan 11

TOTOlink A3700R v9.1.2u.5822_B20200513 was discovered to contain a remote command execution (RCE) vulnerability via the

CVE-2023-52031 CRITICAL POC
9.8 Jan 11

TOTOlink A3700R v9.1.2u.5822_B20200513 was discovered to contain a remote command execution (RCE) vulnerability via the

CVE-2023-52030 CRITICAL POC
9.8 Jan 11

TOTOlink A3700R v9.1.2u.5822_B20200513 was discovered to contain a remote command execution (RCE) vulnerability via the

CVE-2023-43141 CRITICAL POC
9.8 Sep 25

TOTOLINK A3700R V9.1.2u.6134_B20201202 and N600R V5.3c.5137 are vulnerable to Incorrect Access Control. Rated critical s

CVE-2024-42545 CRITICAL POC
9.8 Aug 12

TOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the ssid parameter in setWizardCfg functio

CVE-2024-42543 CRITICAL POC
9.8 Aug 12

TOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the http_host parameter in the loginauth f

CVE-2024-37637 CRITICAL POC
9.8 Jun 14

TOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via ssid5g in the function setWizardCfg

CVE-2024-37635 CRITICAL POC
9.8 Jun 13

TOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via ssid in the function setWiFiBasicCf

CVE-2024-37634 CRITICAL POC
9.8 Jun 13

TOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via ssid in the function setWiFiEasyCfg

CVE-2024-37632 CRITICAL POC
9.8 Jun 13

TOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via the password parameter in function

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