What is the CVSS score of EUVD-2025-19651?

EUVD-2025-19651 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N. EPSS exploitation probability: 0.1%.

Is there a public PoC exploit available for EUVD-2025-19651?

Yes, a public proof-of-concept exploit is available for EUVD-2025-19651. Prioritise patching immediately. EPSS: 0.1%.

Ac6 Firmware EUVD-2025-19651

| CVE-2025-50641 MEDIUM

Classic Buffer Overflow (CWE-120)

2025-07-01 cve@mitre.org

Buffer Overflow Tenda Ac6 Firmware

6.5

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness

CWE

CWE-120

OWASP Top 10:2025

A06:2021 - Vulnerable and Outdated Components

ASVS 5.0

V15 - Secure Coding and Architecture Buffer copy size validation

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.

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

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 26, 2026

Buffer overflow in Tenda AC6 router firmware version 15.03.05.16_multi can be triggered via a crafted deviceId parameter in the addWifiMacFilter function, potentially allowing remote unauthenticated attackers to read sensitive memory and modify limited data after overcoming high attack complexity. While no active exploitation has been confirmed, a public proof-of-concept exploit exists, and the EPSS score is very low.

Affected VersionsENISA

n/a n/a

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.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Lifecycle Timeline

PoC Detected

Apr 08, 2026 - 19:24 vuln.today

Public exploit code

CVE Published

Jul 01, 2025 - 16:15 nvd

MEDIUM 6.5

DescriptionCVE.org

Tenda AC6 15.03.05.16_multi is vulnerable to Buffer Overflow in the addWifiMacFilter function via the parameter deviceId.

Executive ViewAI

Why It Matters

Organizations using Tenda AC6 15.03.05.16_multi should be aware of notable risk from CVE-2025-50641, a buffer overflow vulnerability rated CVSS 6.5. Exploitation could cause memory corruption or application crashes. 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. Monitor vendor channels for patch availability.

Business Impact: Moderate

Compensating Controls

Apply vendor patch. If patching is delayed: enable ASLR/DEP, apply network segmentation.

Threat Intelligence Overview

EPSS Score

0.1%

Top 84% exploitable

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

EUVD

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 0.1%

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

Open

Automatable· derived

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +32

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.