What is the CVSS score of CVE-2025-28136?

CVE-2025-28136 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.2%.

Which versions of A800R Firmware are affected by CVE-2025-28136?

Organizations using TOTOLINK A800R V4.1.2cu.5137_B20200730 should be aware of notable risk from CVE-2025-28136, a stack-based buffer overflow vulnerability rated CVSS 6.5.

How to fix or mitigate CVE-2025-28136?

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

A800R Firmware CVE-2025-28136

MEDIUM

Stack-based Buffer Overflow (CWE-121)

2025-04-15 cve@mitre.org

Buffer Overflow Stack Overflow A800R Firmware TOTOLINK

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:36 vuln.today

CVE Published

Apr 15, 2025 - 14:15 nvd

MEDIUM 6.5

DescriptionCVE.org

TOTOLINK A800R V4.1.2cu.5137_B20200730 was found to contain a buffer overflow vulnerability in the downloadFile.cgi.

AnalysisAI

TOTOLINK A800R V4.1.2cu.5137_B20200730 was found to contain a buffer overflow vulnerability in the downloadFile.cgi. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-121. TOTOLINK A800R V4.1.2cu.5137_B20200730 was found to contain a buffer overflow vulnerability in the downloadFile.cgi. Affected products include: Totolink A800R 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.