What is the CVSS score of CVE-2025-65731?

CVE-2025-65731 has a CVSS 3.1 base score of 6.8 (Medium). CVSS vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2025-65731?

Yes, a public proof-of-concept exploit is available for CVE-2025-65731. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-65731?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Audit authentication configurations.

Dir 605l Firmware CVE-2025-65731

MEDIUM

Missing Authentication for Critical Function (CWE-306)

2026-01-08 cve@mitre.org

D-Link Dir 605l Firmware

6.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-306 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Authentication required for critical functions MITRE ATT&CK 1 technique across 1 tactic: Initial Access 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 6.8 (MEDIUM). Attack vector: Physical. Complexity: Low. Privileges required: None. User interaction: None. Exploitable via local access. Public exploit/POC available.
Exploit ScenarioDerived	An attacker could exploit this vulnerability to compromise the affected system.

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

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Dir-605L Firmware versions up to 6.02cn02 is affected by missing authentication for critical function (CVSS 6.8).

RemediationAI

Monitor vendor advisories for a patch.

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 (CWE-306: Missing Authentication for Critical Function) affects Dir-605L Firmware. was discovered in D-Link Router DIR-605L (Hardware version F1; Firmware version: V6.02CN02) allowing an attacker with physical access to the UART pins to execute arbitrary commands due to presence of root terminal access on a serial interface without proper access control.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.8 MEDIUM

AV:P/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

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

PoC Detected

Jan 30, 2026 - 01:07 vuln.today

Public exploit code

CVE Published

Jan 08, 2026 - 19:15 nvd

MEDIUM 6.8

DescriptionCVE.org

An issue was discovered in D-Link Router DIR-605L (Hardware version F1; Firmware version: V6.02CN02) allowing an attacker with physical access to the UART pins to execute arbitrary commands due to presence of root terminal access on a serial interface without proper access control.

Executive ViewAI

Why It Matters

CVE-2025-65731 presents notable security risk, a missing authentication vulnerability rated CVSS 6.8. This could allow unauthorized access to protected resources. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Moderate

Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access, enable MFA, monitor auth logs.

Threat Intelligence Overview

EPSS Score

0.0%

Top 91% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

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 0.0%

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

Exploitation· derived

Poc

System Exposure· derived

Small

Automatable· derived

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +34

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Affected Products (CPE)CVE.org

cpe:2.3:o:dlink:dir-605l_firmware:6.02cn02:*:*:*:*:*:*:*

More in Dir 605l Firmware

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The miniigd SOAP service in Realtek SDK allows remote attackers to execute arbitrary code via a crafted NewInternalClien

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On D-Link DIR-605L devices, firmware before 2.08UIBetaB01.bin allows an unauthenticated GET request to trigger a reboot.

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D-Link DIR-605L firmware version 1.17B01 BETA is vulnerable to stack overflow via /goform/formTcpipSetup,. Rated critica

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9.8 Feb 10

D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the webpage parameter at /gofo

CVE-2023-24351 CRITICAL Act Now POC

9.8 Feb 10

D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the FILECODE parameter at /gof

CVE-2023-24350 CRITICAL Act Now POC

9.8 Feb 10

D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the config.smtp_email_subject

CVE-2023-24349 CRITICAL Act Now POC

9.8 Feb 10

D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the curTime parameter at /gofo

CVE-2023-24348 CRITICAL Act Now POC

9.8 Feb 10

D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the curTime parameter at /gofo

CVE-2018-20056 CRITICAL Act Now POC

9.8 Dec 11

An issue was discovered in /bin/boa on D-Link DIR-619L Rev.B 2.06B1 and DIR-605L Rev.B 2.12B1 devices. Rated critical se

CVE-2024-37630 HIGH This Week POC

8.8 Jun 13

D-Link DIR-605L v2.13B01 was discovered to contain a hardcoded password vulnerability in /etc/passwd, which allows attac

CVE-2023-24347 HIGH This Week POC

8.8 Feb 10

D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the webpage parameter at /gofo

CVE-2023-24346 HIGH This Week POC

8.8 Feb 10

D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the wan_connected parameter at

Same weakness CWE-306 – Missing Authentication for Critical Function

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CVE-2025-32433 CRITICAL POC

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References

Advisories & patches

REF https://www.dlink.com/en/security-bulletin/ REF https://www.dlink.com/uk/en/products/dir-605l-wireless-n-300-home-cloud-router

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