What is the CVSS score of CVE-2023-37149?

CVE-2023-37149 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.0%.

Is there a public PoC exploit available for CVE-2023-37149?

Yes, a public proof-of-concept exploit is available for CVE-2023-37149. Prioritise patching immediately. EPSS: 2.0%.

Lr350 Firmware CVE-2023-37149

CRITICAL

Command Injection (CWE-77)

2023-07-07 cve@mitre.org

Command Injection Lr350 Firmware TOTOLINK

9.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-77 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Command injection prevention MITRE ATT&CK 1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.8 (CRITICAL). 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 inject arbitrary commands into system command execution by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

No patch listed yet 2.0% exploitation probability (EPSS)

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AnalysisAI

TOTOLINK LR350 V9.3.5u.6369_B20220309 was discovered to contain a command injection vulnerability via the FileName parameter in the setUploadSetting function. Rated critical severity (CVSS 9.8), 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. Use parameterized APIs, avoid shell execution, validate input with strict allowlists.

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 Command Injection (CWE-77), which allows attackers to inject arbitrary commands into system command execution. TOTOLINK LR350 V9.3.5u.6369_B20220309 was discovered to contain a command injection vulnerability via the FileName parameter in the setUploadSetting function. Affected products include: Totolink Lr350 Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

TOTOLINK LR350 V9.3.5u.6369_B20220309 was discovered to contain a command injection vulnerability via the FileName parameter in the setUploadSetting function.

Threat Intelligence Overview

EPSS Score

2.0%

Top 22% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

GitHub

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 CRITICAL

CISA KEV No

Public POC Yes

EPSS 2.0%

Patch available No

Active threat No

Deciding rule

CRITICAL severity + public POC available

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

Low Medium High Critical

KEV: 0

EPSS: +2

CVSS: +49

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

OS Command Injection CRITICAL

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Affected Products (CPE)NVD

cpe:2.3:o:totolink:lr350_firmware:9.3.5u.6369_b20220309:*:*:*:*:*:*:*

More in Lr350 Firmware

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Incorrect access control in TOTOLINK LR350 V9.3.5u.6369_B20220309 allows attackers to obtain the apmib configuration fil

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9.8 Jul 07

TOTOLINK LR350 V9.3.5u.6369_B20220309 was discovered to contain a command injection vulnerability via the ussd parameter

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9.8 Jul 07

TOTOLINK LR350 V9.3.5u.6369_B20220309 was discovered to contain a command injection vulnerability via the FileName param

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9.8 Jul 07

TOTOLINK LR350 V9.3.5u.6369_B20220309 was discovered to contain a command injection vulnerability via the hostname param

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9.8 Nov 23

TOTOLINK LR350 V9.3.5u.6369_B20220309 contains a pre-authentication buffer overflow in the main function via long post d

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TOTOLINK NR1800X V9.1.0u.6279_B20210910 contains a command injection via the FileName parameter in the setUploadSetting

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9.8 Nov 23

TOTOLINK NR1800X V9.1.0u.6279_B20210910 contains a command injection via the ussd parameter in the setUssd function. Rat

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TOTOLINK NR1800X V9.1.0u.6279_B20210910 contains a command injection via the hostName parameter in the setOpModeCfg func

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9.8 Nov 23

TOTOLINK NR1800X V9.1.0u.6279_B20210910 contains a command injection via the FileName parameter in the UploadFirmwareFil

CVE-2026-1158 HIGH This Week POC

8.8 Jan 19

Buffer overflow in Totolik LR350 firmware allows authenticated remote attackers to achieve full system compromise throug

CVE-2026-1157 HIGH This Week POC

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Stack-based buffer overflow in Totolink LR350 firmware (version 9.3.5u.6369_B20220309) allows authenticated remote attac

CVE-2026-1156 HIGH This Week POC

8.8 Jan 19

Unauthenticated remote attackers can exploit a buffer overflow in the WiFi configuration function of Totolink LR350 firm

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