What is the CVSS score of CVE-2025-28135?

CVE-2025-28135 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.3%.

Which versions of A810R Firmware are affected by CVE-2025-28135?

Organizations using TOTOLINK A810R V4.1.2cu.5182_B20201026 face notable risk from CVE-2025-28135, a stack-based buffer overflow vulnerability rated CVSS 7.5.

Is there a public PoC exploit available for CVE-2025-28135?

Yes, a public proof-of-concept exploit is available for CVE-2025-28135. Prioritise patching immediately. EPSS: 0.3%.

How to fix or mitigate CVE-2025-28135?

Within 7 days: Identify all affected systems and apply vendor patches promptly. If patching is delayed, consider network segmentation to limit exposure.

A810R Firmware CVE-2025-28135

HIGH

Stack-based Buffer Overflow (CWE-121)

2025-03-27 cve@mitre.org

Buffer Overflow Stack Overflow A810R Firmware TOTOLINK

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:33 vuln.today

PoC Detected

Apr 15, 2025 - 14:15 vuln.today

Public exploit code

CVE Published

Mar 27, 2025 - 16:15 nvd

HIGH 7.5

DescriptionCVE.org

TOTOLINK A810R V4.1.2cu.5182_B20201026 was found to contain a buffer overflow vulnerability in downloadFile.cgi.

AnalysisAI

TOTOLINK A810R V4.1.2cu.5182_B20201026 was found to contain a buffer overflow vulnerability in downloadFile.cgi. Rated high severity (CVSS 7.5), 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 under CWE-121. TOTOLINK A810R V4.1.2cu.5182_B20201026 was found to contain a buffer overflow vulnerability in downloadFile.cgi. Affected products include: Totolink A810R Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

CVE-2025-28135 vulnerability details – vuln.today

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A810R Firmware CVE-2025-28135

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code