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A950rg Firmware CVE-2025-28037

CRITICAL
OS Command Injection (CWE-78)
2025-04-22 cve@mitre.org
9.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK

2 techniques across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 7.48%.

Exploit ScenarioDerived

A remote attacker could execute arbitrary operating system commands on the host by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.
No patch listed yet 7.5% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

TOTOLINK A810R V4.1.2cu.5182_B20201026 and A950RG V4.1.2cu.5161_B20200903 were found to contain a pre-auth remote command execution vulnerability in the setDiagnosisCfg function through the ipDomain. 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.

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.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. TOTOLINK A810R V4.1.2cu.5182_B20201026 and A950RG V4.1.2cu.5161_B20200903 were found to contain a pre-auth remote command execution vulnerability in the setDiagnosisCfg function through the ipDomain parameter. Affected products include: Totolink A810R Firmware, Totolink A950Rg Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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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

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
PoC Detected
Apr 29, 2025 - 16:03 vuln.today
Public exploit code
CVE Published
Apr 22, 2025 - 16:15 nvd
CRITICAL 9.8

DescriptionCVE.org

TOTOLINK A810R V4.1.2cu.5182_B20201026 and A950RG V4.1.2cu.5161_B20200903 were found to contain a pre-auth remote command execution vulnerability in the setDiagnosisCfg function through the ipDomain parameter.

Executive ViewAI

Why It Matters

CVE-2025-28037 presents critical security risk, a OS command injection vulnerability rated CVSS 9.8. Successful exploitation could allow attackers to execute arbitrary code or commands on affected systems, potentially leading to full system compromise. Proof-of-concept code is publicly available, increasing the risk of exploitation. Organizations should apply vendor updates immediately when available and implement compensating controls in the interim.

Business Impact: Severe
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Deploy WAF rules to block injection patterns; (2) Restrict network access to affected components; (3) Enable enhanced logging for suspicious activity.

Threat Intelligence Overview

EPSS Score
7.5%
Top 8% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC Yes
EPSS 7.5%
Patch available No
Active threat No
Deciding rule
CRITICAL severity + public POC available
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

76
Low Medium High Critical
KEV: 0
EPSS: +7
CVSS: +49
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Affected Products (CPE)CVE.org

cpe:2.3:o:totolink:a810r_firmware:4.1.2cu.5182_b20201026:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a950rg_firmware:4.1.2cu.5182_b20201026:*:*:*:*:*:*:*
CVE-2025-28036 CRITICAL POC
9.8 Apr 22

TOTOLINK A950RG V4.1.2cu.5161_B20200903 was found to contain a pre-auth remote command execution vulnerability in the se

CVE-2025-28035 CRITICAL POC
9.8 Apr 22

TOTOLINK A830R V4.1.2cu.5182_B20201102 was found to contain a pre-auth remote command execution vulnerability in the set

CVE-2025-28034 CRITICAL POC
9.8 Apr 22

TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.51

CVE-2025-45800 CRITICAL POC
9.8 May 02

TOTOLINK A950RG V4.1.2cu.5204_B20210112 contains a command execution vulnerability in the setDeviceName interface of the

CVE-2025-45798 CRITICAL POC
9.8 May 08

A command execution vulnerability exists in the TOTOLINK A950RG V4.1.2cu.5204_B20210112. Rated critical severity (CVSS 9

CVE-2025-67186 CRITICAL POC
9.8 Feb 03

TOTOLINK A950RG router firmware has a buffer overflow in setUrlFilterRules that allows remote attackers to execute code

CVE-2025-67188 CRITICAL POC
9.8 Feb 03

TOTOLINK A950RG has a third buffer overflow in setRadvdCfg providing yet another RCE vector through the router's IPv6 co

CVE-2025-45797 CRITICAL POC
9.8 May 08

TOTOlink A950RG V4.1.2cu.5204_B20210112 contains a buffer overflow vulnerability. Rated critical severity (CVSS 9.8), th

CVE-2025-67187 CRITICAL POC
9.8 Feb 03

TOTOLINK A950RG has a stack-based buffer overflow in a second endpoint, providing an additional RCE vector through the r

CVE-2022-26214 CRITICAL POC
9.8 Mar 15

Totolink A830R V5.9c.4729_B20191112, A3100R V4.1.2cu.5050_B20200504, A950RG V4.1.2cu.5161_B20200903, A800R V4.1.2cu.5137

CVE-2022-26212 CRITICAL POC
9.8 Mar 15

Totolink A830R V5.9c.4729_B20191112, A3100R V4.1.2cu.5050_B20200504, A950RG V4.1.2cu.5161_B20200903, A800R V4.1.2cu.5137

CVE-2022-26211 CRITICAL POC
9.8 Mar 15

Totolink A830R V5.9c.4729_B20191112, A3100R V4.1.2cu.5050_B20200504, A950RG V4.1.2cu.5161_B20200903, A800R V4.1.2cu.5137

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