CVE-2025-28035

CRITICAL
2025-04-22 [email protected]
9.8
CVSS 3.1
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CVSS Vector

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

3
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

Tags

Command Injection A830R Firmware A3100R Firmware A810R Firmware A800R Firmware A3000Ru Firmware A950rg Firmware TOTOLINK

Description

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.

Analysis

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 Context

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.

Affected Products

Totolink A830R Firmware, Totolink A3100R Firmware, Totolink A810R Firmware, Totolink A800R Firmware, Totolink A3000Ru Firmware.

Remediation

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.

Priority Score

75
Low Medium High Critical
KEV: 0
EPSS: +6.4
CVSS: +49
POC: +20

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CVE-2025-28035 vulnerability details – vuln.today
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