What is the CVSS score of EUVD-2025-16766?

EUVD-2025-16766 has a CVSS 3.1 base score of 6.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L. EPSS exploitation probability: 1.7%.

Is there a public PoC exploit available for EUVD-2025-16766?

Yes, a public proof-of-concept exploit is available for EUVD-2025-16766. Prioritise patching immediately. EPSS: 1.7%.

How to fix or mitigate EUVD-2025-16766?

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

X2000r Firmware EUVD-2025-16766

| CVE-2025-5515 MEDIUM

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2025-06-03 cna@vuldb.com

Command Injection X2000r Firmware TOTOLINK

6.3

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-74 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Input neutralization, injection prevention
Impact	Full system compromise — the attacker can execute any command with the privileges of the vulnerable application process. With a CVSS score of 6.3 (MEDIUM), this represents a moderate risk.
Exploit ScenarioDerived	An attacker injects shell metacharacters (;, \|, &&) into a parameter that is passed to a system command, causing additional commands to be executed.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 1.7% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 14, 2026

A vulnerability, which was classified as critical, has been found in TOTOLINK X2000R 1.0.0-B20230726.1108. Affected by this issue is some unknown functionality of the file /boafrm/formMapDel. The manipulation of the argument devicemac1 leads to command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Earlier versions of this analysis (1)

v1 Mar 14, 2026 - 17:04 CVSS 6.3

RemediationAI

Avoid passing user input to system commands. Use language-specific APIs instead of shell commands. If unavoidable, use strict input validation and escaping.

Affected VersionsENISA

X2000R 1.0.0-B20230726.1108

Affected Packages

euvd x2000r 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.

Technical ContextAI · show details

Command injection allows an attacker to execute arbitrary OS commands on the host system through a vulnerable application that passes user input to system shells.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

PoC Detected

Jun 17, 2025 - 20:40 vuln.today

Public exploit code

CVE Published

Jun 03, 2025 - 18:15 nvd

MEDIUM 6.3

Executive ViewAI

Why It Matters

CVE-2025-5515 presents moderate security risk, a 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.

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

1.7%

Top 18% 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 MEDIUM

CISA KEV No

Public POC Yes

EPSS 1.7%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

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: +32

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.

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9.8 Jan 25

TOTOLINK X2000R_V2 V2.0.0-B20230727.10434 has a command injection vulnerability in the sub_449040 (handle function of fo

CVE-2023-46564 CRITICAL Act Now POC

9.8 Oct 25

TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formDMZ. Rated

CVE-2023-46563 CRITICAL Act Now POC

9.8 Oct 25

TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formIpQoS. Rate

CVE-2023-46562 CRITICAL Act Now POC

9.8 Oct 25

TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formDosCfg. Rat

CVE-2023-46560 CRITICAL Act Now POC

9.8 Oct 25

TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formTcpipSetup.

CVE-2023-46559 CRITICAL Act Now POC

9.8 Oct 25

TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formIPv6Addr. R

CVE-2023-46558 CRITICAL Act Now POC

9.8 Oct 25

TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formMapDelDevic

CVE-2023-46557 CRITICAL Act Now POC

9.8 Oct 25

TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formMultiAPVLAN

CVE-2023-46556 CRITICAL Act Now POC

9.8 Oct 25

TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formFilter. Rat

CVE-2023-46555 CRITICAL Act Now POC

9.8 Oct 25

TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formPortFw. Rat

CVE-2023-46554 CRITICAL Act Now POC

9.8 Oct 25

TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formMapDel. Rat

CVE-2023-46553 CRITICAL Act Now POC

9.8 Oct 25

TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formParentContr

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References

Advisories & patches

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2025-5515 REF https://vuldb.com/?ctiid.310952 REF https://vuldb.com/?id.310952 REF https://vuldb.com/?submit.584653 REF https://www.totolink.net/

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GitHub PoC

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