What is the CVSS score of CVE-2025-28035?

CVE-2025-28035 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: 6.4%.

Which versions of A830R Firmware are affected by CVE-2025-28035?

Organizations using a pre-auth remote command execution vulnerability in the setNoticeCfg function face critical risk from CVE-2025-28035, a OS command injection vulnerability rated CVSS 9.8.

Is there a public PoC exploit available for CVE-2025-28035?

Yes, a public proof-of-concept exploit is available for CVE-2025-28035. Prioritise patching immediately. EPSS: 6.4%.

How to fix or mitigate CVE-2025-28035?

Within 24 hours: Identify all affected systems running a pre-auth remote command execution vulnerability in the set and apply vendor patches immediately. Validate that input sanitization is in place for all user-controlled parameters.

A830R Firmware CVE-2025-28035

CRITICAL

OS Command Injection (CWE-78)

2025-04-22 cve@mitre.org

Command Injection A830R Firmware A3100R Firmware A810R Firmware A800R Firmware A3000Ru Firmware A950rg 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 - 18:38 vuln.today

PoC Detected

Apr 29, 2025 - 16:14 vuln.today

Public exploit code

CVE Published

Apr 22, 2025 - 18:15 nvd

CRITICAL 9.8

DescriptionCVE.org

TOTOLINK A830R V4.1.2cu.5182_B20201102 was found to contain a pre-auth remote command execution vulnerability in the setNoticeCfg function through the NoticeUrl parameter.

AnalysisAI

TOTOLINK A830R V4.1.2cu.5182_B20201102 was found to contain a pre-auth remote command execution vulnerability in the setNoticeCfg function through the NoticeUrl parameter. 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 OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. TOTOLINK A830R V4.1.2cu.5182_B20201102 was found to contain a pre-auth remote command execution vulnerability in the setNoticeCfg function through the NoticeUrl parameter. Affected products include: Totolink A830R Firmware, Totolink A3100R Firmware, Totolink A810R Firmware, Totolink A800R Firmware, Totolink A3000Ru Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.

CVE-2025-28035 vulnerability details – vuln.today

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A830R Firmware CVE-2025-28035

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code