What is the CVSS score of CVE-2025-55591?

CVE-2025-55591 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: 6.9%.

Which versions of A3002r Firmware are affected by CVE-2025-55591?

Organizations using TOTOLINK-A3002R v4.0.0-B20230531.1404 face critical risk from CVE-2025-55591, a command injection vulnerability rated CVSS 9.8.

Is there a public PoC exploit available for CVE-2025-55591?

Yes, a public proof-of-concept exploit is available for CVE-2025-55591. Prioritise patching immediately. EPSS: 6.9%.

How to fix or mitigate CVE-2025-55591?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Validate that input sanitization is in place for all user-controlled parameters.

A3002r Firmware CVE-2025-55591

CRITICAL

Command Injection (CWE-77)

2025-08-18 cve@mitre.org

Command Injection A3002r Firmware TOTOLINK

9.8

CVSS 3.1 · NVD

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:07 vuln.today

PoC Detected

Aug 21, 2025 - 14:11 vuln.today

Public exploit code

CVE Published

Aug 18, 2025 - 20:15 nvd

CRITICAL 9.8

DescriptionCVE.org

TOTOLINK-A3002R v4.0.0-B20230531.1404 was discovered to contain a command injection vulnerability in the devicemac parameter in the formMapDel endpoint.

AnalysisAI

TOTOLINK-A3002R v4.0.0-B20230531.1404 was discovered to contain a command injection vulnerability in the devicemac parameter in the formMapDel endpoint. 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.

Technical ContextAI

This vulnerability is classified as Command Injection (CWE-77), which allows attackers to inject arbitrary commands into system command execution. TOTOLINK-A3002R v4.0.0-B20230531.1404 was discovered to contain a command injection vulnerability in the devicemac parameter in the formMapDel endpoint. Affected products include: Totolink A3002R Firmware.

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.

CVE-2025-55591 vulnerability details – vuln.today

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A3002r Firmware CVE-2025-55591

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code