What is the CVSS score of CVE-2025-45859?

CVE-2025-45859 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.2%.

Which versions of A3002r Firmware are affected by CVE-2025-45859?

Organizations using TOTOLINK A3002R v4.0.0-B20230531.1404 should be aware of moderate risk from CVE-2025-45859, a buffer overflow vulnerability rated CVSS 5.4.

Is there a public PoC exploit available for CVE-2025-45859?

Yes, a public proof-of-concept exploit is available for CVE-2025-45859. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-45859?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

A3002r Firmware CVE-2025-45859

MEDIUM

Classic Buffer Overflow (CWE-120)

2025-05-13 cve@mitre.org

Buffer Overflow A3002r Firmware TOTOLINK

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:41 vuln.today

PoC Detected

Jun 16, 2025 - 18:25 vuln.today

Public exploit code

CVE Published

May 13, 2025 - 15:15 nvd

MEDIUM 5.4

DescriptionCVE.org

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the bandstr parameter in the formMapDelDevice interface.

AnalysisAI

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the bandstr parameter in the formMapDelDevice interface. Rated medium severity (CVSS 5.4), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the bandstr parameter in the formMapDelDevice interface. Affected products include: Totolink A3002R Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

CVE-2025-45859 vulnerability details – vuln.today

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A3002r Firmware CVE-2025-45859

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code