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CVE-2026-8260— D-Link DCS-935L HNAP Service hnap_service SetDeviceSettings buffer overflow

Quick assessment

Affected
D-Link DCS-935L
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

D-Link DCS-935L是中国友讯（D-Link）公司的一款路由器。 D-Link DCS-935L 1.10.01及之前版本存在缓冲区错误漏洞，该漏洞源于HNAP Service组件中文件/web/cgi-bin/hnap/hnap_service的函数SetDeviceSettings对参数AdminPassword的操作，可能导致缓冲区溢出。

CVSS 8.8 · High EPSS 1.16% · P66

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
D-Link DCS-935L 1.10.01 affected
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I. Basic Information for CVE-2026-8260

Vulnerability Information
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Vulnerability Title
D-Link DCS-935L HNAP Service hnap_service SetDeviceSettings buffer overflow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
D-Link DCS-935L 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DCS-935L是中国友讯（D-Link）公司的一款路由器。 D-Link DCS-935L 1.10.01及之前版本存在缓冲区错误漏洞，该漏洞源于HNAP Service组件中文件/web/cgi-bin/hnap/hnap_service的函数SetDeviceSettings对参数AdminPassword的操作，可能导致缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
D-Link DCS-935L 1.10.01 -

II. Public POCs for CVE-2026-8260

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III. Intelligence Information for CVE-2026-8260

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Vendor Advisories for CVE-2026-8260 (2)

Exploits & Public PoCs for CVE-2026-8260 (1)

Vendor Pages for CVE-2026-8260 (1)

Same Patch Batch · D-Link · 2026-05-11 · 7 CVEs total

CVE-2026-8346 6.3 MEDIUM D-Link DIR-816 portForward command injection
CVE-2026-8345 6.3 MEDIUM D-Link DIR-816 singlePortForward sub_445E7C command injection
CVE-2026-8344 6.3 MEDIUM D-Link DIR-816 formDMZ.cgi sub_445E7C command injection
CVE-2026-8273 4.7 MEDIUM D-Link DNS-320 system_mgr.cgi cgi_merge_user os command injection
CVE-2026-8272 4.7 MEDIUM D-Link DNS-320 webfile_mgr.cgi chown os command injection
CVE-2026-8271 4.7 MEDIUM D-Link DNS-320 network_mgr.cgi cgi_upnp_edit os command injection

IV. Related Vulnerabilities

Same product: DCS-935L
Same vendor: D-Link
Same weakness: CWE-120

V. Comments for CVE-2026-8260

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