CVE-2014-3936
CriticalPublic exploitStack-based buffer overflow in the do_hnap function in www/my_cgi.cgi in D-Link DSP-W215 (Rev.
Published Jun 2, 2014 · Updated May 6, 2026
Key Facts
Patch immediately- CVE-2014-3936 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Dir-505l Shareport Mobile Companion (Dlink), Dir505 Shareport Mobile Companion (Dlink), Dsp-W215 (Dlink) and 3 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 77% probability of exploitation in the next 30 days.
- Fixed versions are available, including Dir505 Shareport Mobile Companion Firmware 1.07, Dir505l Shareport Mobile Companion Firmware 1.01, Dsp-W215 Firmware 1.01.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
77%
Higher than 99.5% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2014-3936 brief as a PDF
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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.
Affected Products
6 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Dir-505l Shareport Mobile CompanionDlink | a1 | n/a |
| Dir505 Shareport Mobile CompanionDlink | a1 | n/a |
| Dsp-W215Dlink | a1 | n/a |
| Dir505l Shareport Mobile Companion FirmwareDlink | See advisory | 1.01 |
| Dir505 Shareport Mobile Companion FirmwareDlink | See advisory | 1.07 |
Patched Releases
Dir505 Shareport Mobile Companion Firmware
1.07
Dir505l Shareport Mobile Companion Firmware
1.01
Dsp-W215 Firmware
1.01
Timeline
Publicly disclosed
Jun 2, 2014
Last updated
May 6, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisoryhttp://securityadvisories.dlink.com/security/publication.aspx?name=SAP10027
- advisoryhttp://securityadvisories.dlink.com/security/publication.aspx?name=SAP10029
- exploithttp://packetstormsecurity.com/files/127427/D-Link-HNAP-Request-Remote-Buffer-Overflow.html
- exploitMSF dlink_hnap_bof.rb
- exploitExploitDB-34064
FAQ
Common Questions.
Stack-based buffer overflow in the do_hnap function in www/my_cgi.cgi in D-Link DSP-W215 (Rev.
Affected: Dir-505l Shareport Mobile Companion (Dlink) versions a1; Dir505 Shareport Mobile Companion (Dlink) versions a1; Dsp-W215 (Dlink) versions a1, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Dir505 Shareport Mobile Companion Firmware 1.07, Dir505l Shareport Mobile Companion Firmware 1.01, Dsp-W215 Firmware 1.01.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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