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CVE-2026-8260: Buffer Overflow in D-Link DCS-935L

0
High
VulnerabilityCVE-2026-8260cvecve-2026-8260
Published: Mon May 11 2026 (05/11/2026, 01:15:09 UTC)
Source: CVE Database V5
Vendor/Project: D-Link
Product: DCS-935L

Description

CVE-2026-8260 is a high-severity buffer overflow vulnerability in the D-Link DCS-935L device firmware version 1. 10. 01. The flaw exists in the SetDeviceSettings function within the HNAP Service component, specifically in the handling of the AdminPassword argument. This vulnerability can be exploited remotely without user interaction or privileges. Although an exploit has been publicly disclosed, there are no confirmed reports of exploitation in the wild. No official patch or remediation guidance has been provided by the vendor at this time.

CVSS v4.0

Score 8.7high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS: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

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 05/18/2026, 10:11:09 UTC

Technical Analysis

This vulnerability involves a buffer overflow triggered by manipulating the AdminPassword parameter in the SetDeviceSettings function of the HNAP Service on D-Link DCS-935L devices running firmware up to version 1.10.01. The overflow occurs due to improper input handling, allowing remote attackers to potentially execute arbitrary code or cause denial of service. The CVSS 4.0 base score is 8.7, reflecting high severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. No official patch or remediation level has been documented.

Potential Impact

Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code or disrupt device functionality by causing a buffer overflow. This compromises the confidentiality, integrity, and availability of the affected device. The vulnerability affects devices running firmware version 1.10.01 or earlier. There are no confirmed reports of active exploitation in the wild.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict network access to the device's management interface to trusted sources only and monitor for unusual activity. Avoid exposing the device management interface directly to untrusted networks.

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Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-05-10T15:16:46.711Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a012f49cbff5d86103ef6a9

Added to database: 5/11/2026, 1:22:17 AM

Last enriched: 5/18/2026, 10:11:09 AM

Last updated: 6/6/2026, 3:55:27 PM

Views: 96

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