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9.0
HIGH CVSS 2.0
CVE-2026-8260
D-Link DCS-935L HNAP Service hnap_service SetDeviceSettings buffer overflow
Overview
Description

A vulnerability was found in D-Link DCS-935L up to 1.10.01. The impacted element is the function SetDeviceSettings of the file /web/cgi-bin/hnap/hnap_service of the component HNAP Service. The manipulation of the argument AdminPassword results in buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used.

Details
INFO

Published Date :

May 11, 2026, 2:16 a.m.

Last Modified :

May 12, 2026, 7:45 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Impact
Affected Products

The following products are affected by CVE-2026-8260 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Dlink dcs-935l_firmware
2 Dlink dcs-935l
: Total Affected Vendor : 1 | Products : 2
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
CVSS 4.0 HIGH [email protected]
Solution
Update firmware to patch buffer overflow vulnerability in HNAP Service.
  • Update D-Link DCS-935L firmware to a non-vulnerable version.
  • Disable HNAP service if not required.
  • Restrict access to the device management interface.
Public PoC/Exploit Available at Github

CVE-2026-8260 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-8260.

URL Resource
https://github.com/0xcc12138/DCS-935L-HNAP-Service-CVE Exploit Third Party Advisory
https://vuldb.com/submit/809888 Third Party Advisory VDB Entry
https://vuldb.com/vuln/362557 Third Party Advisory VDB Entry
https://vuldb.com/vuln/362557/cti Permissions Required VDB Entry
https://www.dlink.com/ Product
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-8260 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-8260 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-100: Overflow Buffers Overflow Buffers CAPEC-123: Buffer Manipulation Buffer Manipulation CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-92: Forced Integer Overflow Forced Integer Overflow CAPEC-100: Overflow Buffers Overflow Buffers

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
CryptReaper12/CVE-2026-8260

None

Updated: 3 weeks, 3 days ago
0 stars 0 fork 0 watcher
Born at : May 11, 2026, 10:16 a.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-8260 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-8260 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    May. 12, 2026

    Action Type Old Value New Value
    Added CPE Configuration AND OR *cpe:2.3:o:dlink:dcs-935l_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.10.01 OR cpe:2.3:h:dlink:dcs-935l:-:*:*:*:*:*:*:*
    Added Reference Type VulDB: https://github.com/0xcc12138/DCS-935L-HNAP-Service-CVE Types: Exploit, Third Party Advisory
    Added Reference Type VulDB: https://vuldb.com/submit/809888 Types: Third Party Advisory, VDB Entry
    Added Reference Type VulDB: https://vuldb.com/vuln/362557 Types: Third Party Advisory, VDB Entry
    Added Reference Type VulDB: https://vuldb.com/vuln/362557/cti Types: Permissions Required, VDB Entry
    Added Reference Type VulDB: https://www.dlink.com/ Types: Product
  • New CVE Received by [email protected]

    May. 11, 2026

    Action Type Old Value New Value
    Added Description A vulnerability was found in D-Link DCS-935L up to 1.10.01. The impacted element is the function SetDeviceSettings of the file /web/cgi-bin/hnap/hnap_service of the component HNAP Service. The manipulation of the argument AdminPassword results in buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V2 (AV:N/AC:L/Au:S/C:C/I:C/A:C)
    Added CWE CWE-119
    Added CWE CWE-120
    Added Reference https://github.com/0xcc12138/DCS-935L-HNAP-Service-CVE
    Added Reference https://vuldb.com/submit/809888
    Added Reference https://vuldb.com/vuln/362557
    Added Reference https://vuldb.com/vuln/362557/cti
    Added Reference https://www.dlink.com/
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 7.4
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 9.0
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact