CVE-2025-6511Public exploitNetwork attack vector

Memory corruption via unbounded GET request concatenation

Published Jun 23, 2025 · Updated Jul 15, 2025

Stack-based buffer overflow in NETGEAR EX6150 firmware 1.0.0.46_1.0.76 allows remote authenticated users to corrupt process memory. At sub_410090, strcat appends an oversized GET /mtd request to an approximately 100-byte stack buffer without checking the destination capacity. The HTTP request must reach the extender's management service with low privileges; the published proof of concept demonstrates memory corruption, not code execution.

CVSS severity8.8
High
EPSS probability1.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stack-based buffer overflow in NETGEAR EX6150 firmware 1.0.0.46_1.0.76 allows remote authenticated users to corrupt process memory. At sub_410090, strcat appends an oversized GET /mtd request to an approximately 100-byte stack buffer without checking the destination capacity. The HTTP request must reach the extender's management service with low privileges; the published proof of concept demonstrates memory corruption, not code execution.

The record

CVE
CVE-2025-6511
Published
Jun 23, 2025
Updated
Jul 15, 2025
Vendor
NETGEAR
Product
NETGEAR EX6150
Classifications
CWE-121, CWE-119, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0.46_1.0.76

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NETGEAR · NETGEAR EX6150version=1.0.0.46_1.0.76

Published CVSS scores

9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
7.4VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo