What is the CVSS score of EUVD-2025-19187?

EUVD-2025-19187 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P. EPSS exploitation probability: 2.5%.

Is there a public PoC exploit available for EUVD-2025-19187?

Yes, a public proof-of-concept exploit is available for EUVD-2025-19187. Prioritise patching immediately. EPSS: 2.5%.

Ca300 Poe Firmware EUVD-2025-19187

| CVE-2025-6621 LOW

Command Injection (CWE-77)

2025-06-25 cna@vuldb.com

Command Injection Ca300 Poe Firmware TOTOLINK

2.1

CVSS 4.0 · NVD

View

Vulnerability Assessment

Weakness

CWE

CWE-77

OWASP Top 10:2025

A05:2025 - Injection

ASVS 5.0

V1 - Encoding and Sanitization Command injection prevention

MITRE ATT&CK

1 technique across 1 tactic: Execution

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

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).

No patch listed yet 2.5% exploitation probability (EPSS)

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AnalysisAIv2 – Jul 26, 2026

OS command injection in TOTOLINK CA300-PoE firmware 6.2c.884 allows remote attackers with low privileges to execute arbitrary commands on the device via the QuickSetting function. Exploit code is publicly available, increasing the risk of targeted attacks; no active exploitation has been confirmed by CISA KEV, though EPSS suggests moderate exploit probability (2.45%).

Earlier versions of this analysis (1)

v1 Mar 15, 2026 - 23:19 CVSS 6.3

Affected VersionsENISA

CA300-PoE 6.2c.884

Affected Packages

euvd ca300_poe no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 2.1 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

Low

User Interaction

None

Vulnerable system: Confidentiality

Low

Vulnerable system: Integrity

Low

Vulnerable system: Availability

Low

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

6.3 (MEDIUM) 2.1 (LOW)

PoC Detected

Jun 27, 2025 - 18:10 vuln.today

Public exploit code

CVE Published

Jun 25, 2025 - 18:15 nvd

MEDIUM 6.3

CVE Published

Jun 25, 2025 - 18:15 cve.org

LOW 2.1

DescriptionCVE.org

A vulnerability classified as critical has been found in TOTOLINK CA300-PoE 6.2c.884. This affects the function QuickSetting of the file ap.so. The manipulation of the argument hour/minute leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Executive ViewAI

Why It Matters

Organizations using A vulnerability classified as critical should be aware of moderate risk from CVE-2025-6621, a command injection vulnerability rated CVSS 6.3. Exploitation could allow attackers to execute code or inject malicious input. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.

Recommended Action

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Validate input sanitization for user-controlled parameters.

Business Impact: Low

Compensating Controls

Apply vendor patch. If patching is delayed: deploy WAF rules, restrict network access, enable logging.

Threat Intelligence Overview

EPSS Score

2.5%

Top 15% exploitable

Exploit

POC

Public exploit code exists

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

GitHub

VulDB

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 LOW

CISA KEV No

Public POC Yes

EPSS 2.5%

Patch available No

Active threat No

Deciding rule

LOW severity (CVSS 0.1-3.9)

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

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Human Impact

Low

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +2

CVSS: +10

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

OS Command Injection CRITICAL

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

More in Ca300 Poe Firmware

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CVE-2023-24161 CRITICAL Act Now POC

9.8 Feb 14

TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a command injection vulnerability via the webWlanIdx parameter in

CVE-2023-24160 CRITICAL Act Now POC

9.8 Feb 14

TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a command injection vulnerability via the admuser parameter in th

CVE-2023-24159 CRITICAL Act Now POC

9.8 Feb 14

TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a command injection vulnerability via the admpass parameter in th

CVE-2023-24149 CRITICAL Act Now POC

9.8 Feb 03

TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a hard code password for root which is stored in the component /e

CVE-2023-24148 CRITICAL Act Now POC

9.8 Feb 03

TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a command injection vulnerability via the FileName parameter in t

CVE-2023-24146 CRITICAL Act Now POC

9.8 Feb 03

TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a command injection vulnerability via the minute parameter in the

CVE-2023-24145 CRITICAL Act Now POC

9.8 Feb 03

TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a command injection vulnerability via the plugin_version paramete

CVE-2023-24144 CRITICAL Act Now POC

9.8 Feb 03

TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a command injection vulnerability via the hour parameter in the s

CVE-2023-24143 CRITICAL Act Now POC

9.8 Feb 03

TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a command injection vulnerability via the NetDiagTracertHop param

CVE-2023-24142 CRITICAL Act Now POC

9.8 Feb 03

TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a command injection vulnerability via the NetDiagPingSize paramet

CVE-2023-24141 CRITICAL Act Now POC

9.8 Feb 03

TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a command injection vulnerability via the NetDiagPingTimeOut para

CVE-2023-24140 CRITICAL Act Now POC

9.8 Feb 03

TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a command injection vulnerability via the NetDiagPingNum paramete

Same weakness CWE-77 – Command Injection

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CVE-2024-21887 CRITICAL POC

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CVE-2016-3081 HIGH POC

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CVE-2012-1823 CRITICAL POC

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CVE-2016-1555 CRITICAL POC

9.8

CVE-2024-55956 CRITICAL POC

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CVE-2015-2051 HIGH POC

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CVE-2017-6327 HIGH POC

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CVE-2023-34960 CRITICAL POC

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Same technique Command Injection

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CVE-2019-15107 CRITICAL POC

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CVE-2024-51378 CRITICAL POC

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CVE-2014-6271 CRITICAL POC

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References

Advisories & patches

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2025-6621 REF https://vuldb.com/?ctiid.313839 REF https://vuldb.com/?id.313839 REF https://vuldb.com/?submit.602266 REF https://www.totolink.net/

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