CVE-2014-3936

CRITICAL ⚠ Exploit

Stack-based buffer overflow in the do_hnap function in www/my_cgi.cgi in D-Link DSP-W215 (Rev. A1) with firmware 1.01b06 and earlier, DIR-505 with firmware before 1.08b10, and DIR-505L with firmwar...

Affects 6 products across 1 vendor.

BCS8.99
CVSS 2.010.0
EPSS76.6%
Percentile99th
PatchPatched
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
CWE Weakness Definitions
CWE-119: Improper Restriction of Operations within Memory Buffer

Parent class for buffer-related vulnerabilities where operations exceed buffer boundaries.

Related Attack Patterns (CAPEC)
CAPEC-8 Buffer Overflow in an API Call
via CWE-119
CAPEC-9 Buffer Overflow in Local Command-Line Utilities
via CWE-119
CAPEC-10 Buffer Overflow via Environment Variables
via CWE-119
CAPEC-14 Client-side Injection-induced Buffer Overflow
via CWE-119
CAPEC-24 Filter Failure through Buffer Overflow
via CWE-119
Show all 12

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ SAGE Intelligence — CITED Relevance Research Team

{ "executive_summary": "A stack-based buffer overflow vulnerability exists in the do_hnap function in www/my_cgi.cgi of D-Link DSP-W215 (Rev. A1) with firmware 1.01b06 and earlier, DIR-505 with firmware before 1.08b10, and DIR-505L with firmware 1.01 and earlier. This allows remote attackers to execute arbitrary code via a long Content-Length header in a GetDeviceSettings action in an HNAP request.", "attack_vector_detail": "The vulnerability is triggered by sending a specially crafted HNAP request with an excessively long Content-Length header to the do_hnap function in www/my_cgi.cgi. This causes a stack-based buffer overflow, potentially allowing an attacker to execute arbitrary code on the affected devices.", "affected_components": ["D-Link DSP-W215 (Rev. A1) with firmware 1.01b06 and earlier", "DIR-505 with firmware before 1.08b10", "DIR-505L with firmware 1.01 and earlier"], "exploitation_likelihood

BSID: BS-2014-GLOBAL-211603-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16

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Frequently Asked Questions
What is CVE-2014-3936?
{ "executive_summary": "A stack-based buffer overflow vulnerability exists in the do_hnap function in www/my_cgi.cgi of D-Link DSP-W215 (Rev. A1) with firmware 1.01b06 and earlier, DIR-505 with firmware before 1.08b10, and DIR-505L with firmware 1.01 and earlier. This allows remote attackers to execute arbitrary code via a long Content-Length header in a GetDeviceSettings action in an HNAP request.", "attack_vector_detail": "The vulnerability is triggered by sending a specially crafted HNAP
What is the CVSS score for CVE-2014-3936?
CVE-2014-3936 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 76.6%.
Is CVE-2014-3936 actively exploited?
Public exploit available for CVE-2014-3936. Exploitation risk elevated.
How do I remediate CVE-2014-3936?
Advisory: http://securityadvisories.dlink.com/security/publication.aspx?name=SAP10027 PSIRT: [email protected]
What systems are affected by CVE-2014-3936?
CVE-2014-3936 affects: Dlink, Dlink, Dlink, Dlink, Dlink, Dlink.
Vulnerability Details
CVE IDCVE-2014-3936
BSIDBS-2014-GLOBAL-211603-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published2014-06-02
Last Modified2026-05-06
ICS Relevance90%
Weakness (CWE)
Improper Restriction of Operations within Memory Buffer
Domains
NETWORK-INFRA
SourceNVD
Official Description

Stack-based buffer overflow in the do_hnap function in www/my_cgi.cgi in D-Link DSP-W215 (Rev. A1) with firmware 1.01b06 and earlier, DIR-505 with firmware before 1.08b10, and DIR-505L with firmware 1.01 and earlier allows remote attackers to execute arbitrary code via a long Content-Length header in a GetDeviceSettings action in an HNAP request.

Source: NIST NVD / MITRE CVE Database

Affected Products
VendorProductFixed Version
Dlink Dir-505L Shareport Mobile Companion —
Dlink Dir505 Shareport Mobile Companion Firmware —
Dlink Dir505 Shareport Mobile Companion —
Dlink Dir505L Shareport Mobile Companion Firmware —
Dlink Dsp-W215 Firmware —
Dlink Dsp-W215 —
Remediation
View Vendor Advisory →
Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: August 2026 | Threat Age: 4446 Days
CISA KEVNot in KEV catalog
Public Exploit⚠ Available — Reference
PoC CodeNot confirmed
SAGE Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
Enriched At2026-05-25
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