What is the CVSS score of EUVD-2025-18791?

EUVD-2025-18791 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Is there a public PoC exploit available for EUVD-2025-18791?

Yes, a public proof-of-concept exploit is available for EUVD-2025-18791. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate EUVD-2025-18791?

Within 24 hours: Identify and inventory all DIR-619L 2.06B01 devices in production and document their network role and exposure level. Within 7 days: Isolate affected devices from internet access, disable the /goform/formWlanGuestSetup functionality if possible, and implement network segmentation to limit lateral movement. Within 30 days: Develop a replacement plan for end-of-life equipment and decommission or replace DIR-619L units with supported alternatives, prioritizing internet-facing and critical infrastructure devices.

Dir 619l Firmware EUVD-2025-18791

| CVE-2025-6370 HIGH

Buffer Overflow (CWE-119)

2025-06-20 cna@vuldb.com

RCE Buffer Overflow D-Link Dir 619l Firmware

8.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-119 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Bounds checking, buffer size validation MITRE ATT&CK 2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS 8.8. EPSS 0.2%. Public PoC/exploit available. No patch confirmed.
Exploit ScenarioDerived	An attacker could exploit this vulnerability in A vulnerability classified as critical to compromise the security of affected deployments, potentially impacting confidentiality, integrity, or availability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 15, 2026

A buffer overflow vulnerability in A vulnerability classified as critical (CVSS 8.8). Risk factors: public PoC available.

Earlier versions of this analysis (1)

v1 Mar 15, 2026 - 00:19 CVSS 8.8

A vulnerability classified as critical was found in D-Link DIR-619L 2.06B01. Affected by this vulnerability is the function formWlanGuestSetup of the file /goform/formWlanGuestSetup. The manipulation

RemediationAI

Monitor vendor channels for patch availability. Consider network segmentation to limit exposure if patching is delayed.

Affected VersionsENISA

DIR-619L 2.06B01

Affected Packages

euvd dir_619l 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

CWE-119 (Buffer Overflow). CVSS 8.8 indicates high severity. Affects A vulnerability classified as critical.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.8 HIGH

AV:N/AC:L/PR:L/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

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

PoC Detected

Jun 25, 2025 - 20:09 vuln.today

Public exploit code

CVE Published

Jun 20, 2025 - 22:15 nvd

HIGH 8.8

DescriptionCVE.org

A vulnerability classified as critical was found in D-Link DIR-619L 2.06B01. Affected by this vulnerability is the function formWlanGuestSetup of the file /goform/formWlanGuestSetup. The manipulation of the argument curTime leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Executive ViewAI

Why It Matters

A critical stack-based buffer overflow vulnerability (CVE-2025-6370) affects D-Link DIR-619L routers that are no longer supported by the vendor, with public exploits now available. Organizations using this end-of-life equipment face immediate risk of remote code execution, potential network compromise, and data breach if these devices are internet-facing or serve critical network functions.

Business Impact: High

Compensating Controls

Implement Web Application Firewall (WAF) rules to block requests to /goform/formWlanGuestSetup; restrict network access to the device administrative interface using firewall rules; disable guest network functionality if not essential; place devices behind a VPN or bastion host; segment the network to prevent compromised devices from accessing sensitive systems; monitor for suspicious traffic patterns and exploitation attempts; consider replacement with supported router models as a permanent mitigation.

Threat Intelligence Overview

EPSS Score

0.2%

Top 60% 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 HIGH

CISA KEV No

Public POC Yes

EPSS 0.2%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

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

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +44

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.