Buffer Overflow Vulnerability in D-Link DCS-935L HNAP Service
CVE-2026-8260

8.7HIGH

Key Information:

Vendor

D-link
Status
Dcs-935l
Vendor
CVE Published:
11 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8260?

A buffer overflow vulnerability affects the D-Link DCS-935L camera models running firmware versions up to 1.10.01. The flaw exists in the SetDeviceSettings function of the HNAP Service, located at /web/cgi-bin/hnap/hnap_service. This vulnerability enables an attacker to manipulate the AdminPassword argument, potentially leading to remote code execution. An exploit has been publicly disclosed, posing significant risks for users of the affected devices.

Affected Version(s)

DCS-935L 1.10.01

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-8260 - Proof of Concept

References

https://vuldb.com/vuln/362557
vdb-entrytechnical-description
https://vuldb.com/vuln/362557/cti
signaturepermissions-required
https://vuldb.com/submit/809888
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

0xcc12138 (VulDB User)
.