EUVD-2025-18952Vulnerability Assessment
| Weakness |
CWE
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A06:2021 - Vulnerable and Outdated Components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. |
| Impact | While the CVSS 3.1 score of 8.8 is high (reflecting High confidentiality, integrity, and availability impact), real-world risk is MODERATE-TO-HIGH with critical context: (1) Attack Vector is Network but requires authenticated access (PR:L), reducing opportunistic attack surface; (2) EPSS data unavailable from description but public POC disclosure significantly elevates exploitation probability; (3) KEV/CISA active exploitation status unknown from provided data, but public disclosure of exploit code means weaponization is probable; (4) SSVC assessment: Exploitation is Functional (POC disclosed), likely automatable given network vector, Technical Impact is High (code execution). Primary mitigating factor: device is end-of-life with no vendor patches available, meaning vulnerable installations are largely legacy deployments. However, many consumer networks still run abandoned hardware, making this a persistent threat in unmanaged environments. |
| Exploit ScenarioDerived | An authenticated attacker on the same network as an EX6100 device (or with network access to its web interface) sends a specially crafted HTTP request or configuration command that triggers the vulnerable sub_415EF8 function. The request contains an oversized input payload designed to overflow the stack buffer, overwriting return addresses or function pointers. By controlling the overflow data, the attacker achieves arbitrary code execution on the device with root-level privileges, potentially allowing them to: (1) pivot to other network devices; (2) sniff wireless traffic; (3) modify network configuration; (4) establish persistent backdoor access. With public POC availability, this exploitation is likely automatable. An attacker needs valid credentials or must bypass authentication, though wireless extenders on home networks are often accessible to any connected device. Successful exploitation requires no user interaction and leaves minimal forensic traces on the device itself. |
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Alert meAnalysisAIv1 – Mar 15, 2026
CVE-2025-6510 is a critical stack-based buffer overflow vulnerability in Netgear EX6100 WiFi extender (version 1.0.2.28_1.1.138) affecting the sub_415EF8 function. An authenticated remote attacker can exploit this vulnerability to achieve arbitrary code execution with high integrity and availability impact. The vulnerability has public exploit disclosure and affects only end-of-life products no longer receiving vendor support.
Affected VersionsENISA
Affected Packages
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
This vulnerability is a stack-based buffer overflow (CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer) in the Netgear EX6100 WiFi range extender firmware. The vulnerable function sub_415EF8 fails to properly validate input boundaries before writing to stack memory, allowing an attacker to overwrite the stack frame and potentially achieve code execution. The EX6100 is a consumer-grade WiFi extender running proprietary firmware; the vulnerability exists in low-level network processing or configuration parsing routines. CPE identifier would be: cpe:2.3:h:netgear:ex6100:1.0.2.28_1.1.138:*:*:*:*:*:*:* with corresponding firmware CPE for the affected version.
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Severity by source
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
Lifecycle Timeline
2DescriptionCVE.org
A vulnerability was found in Netgear EX6100 1.0.2.28_1.1.138. It has been rated as critical. Affected by this issue is the function sub_415EF8. The manipulation leads to stack-based buffer overflow. The attack may 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
Netgear EX6100 wireless extenders (version 1.0.2.28_1.1.138) contain a critical stack-based buffer overflow vulnerability that allows remote attackers to execute arbitrary code without authentication. Organizations using these end-of-life devices face immediate risk of network compromise, unauthorized access, and potential lateral movement into connected systems.
Within 24 hours: Inventory all Netgear EX6100 devices in your network and isolate affected units from critical systems. Within 7 days: Evaluate replacement with current-generation, actively-supported wireless extenders from vendors with security update commitments. Within 30 days: Complete migration of all EX6100 devices from the network and decommission or dispose of them securely.
No patch available for end-of-life product. Interim mitigations: (1) Disable remote management features on affected devices; (2) Segment EX6100 devices to isolated VLANs with restricted outbound access; (3) Implement network-based detection rules blocking suspicious traffic to/from these devices; (4) Restrict physical access to device configuration; (5) Monitor for exploitation attempts via IDS/IPS; (6) Prioritize replacement as primary remediation strategy.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
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 represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
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