Description
A stack-based buffer overflow vulnerability exists in D-Link DIR-605L Wireless N300 Cloud Router firmware versions 1.12 and 1.13 via the getAuthCode() function. The flaw arises from unsafe usage of sprintf() when processing user-supplied CAPTCHA data via the FILECODE parameter in /goform/formLogin. A remote unauthenticated attacker can exploit this to execute arbitrary code with root privileges on the device.
Published: 2025-07-31
Score: 9.3 Critical
EPSS: 59.2% High
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2012-6567 A stack-based buffer overflow vulnerability exists in D-Link DIR-605L Wireless N300 Cloud Router firmware versions 1.12 and 1.13 via the getAuthCode() function. The flaw arises from unsafe usage of sprintf() when processing user-supplied CAPTCHA data via the FILECODE parameter in /goform/formLogin. A remote unauthenticated attacker can exploit this to execute arbitrary code with root privileges on the device.
History

Tue, 23 Sep 2025 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Dlink
Dlink dir-605l
Dlink dir-605l Firmware
CPEs cpe:2.3:h:dlink:dir-605l:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-605l_firmware:*:*:*:*:*:*:*:*
Vendors & Products Dlink
Dlink dir-605l
Dlink dir-605l Firmware
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Thu, 31 Jul 2025 19:45:00 +0000

Type Values Removed Values Added
First Time appeared D-link
D-link dir-605l
Vendors & Products D-link
D-link dir-605l

Thu, 31 Jul 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 31 Jul 2025 15:00:00 +0000

Type Values Removed Values Added
Description A stack-based buffer overflow vulnerability exists in D-Link DIR-605L Wireless N300 Cloud Router firmware versions 1.12 and 1.13 via the getAuthCode() function. The flaw arises from unsafe usage of sprintf() when processing user-supplied CAPTCHA data via the FILECODE parameter in /goform/formLogin. A remote unauthenticated attacker can exploit this to execute arbitrary code with root privileges on the device.
Title D-Link DIR-605L Captcha Handling Buffer Overflow
Weaknesses CWE-121
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

D-link Dir-605l
Dlink Dir-605l Dir-605l Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-14T02:06:05.524Z

Reserved: 2025-07-30T17:20:30.437Z

Link: CVE-2012-10021

cve-icon Vulnrichment

Updated: 2025-07-31T18:31:05.553Z

cve-icon NVD

Status : Analyzed

Published: 2025-07-31T15:15:32.597

Modified: 2025-09-23T17:45:55.843

Link: CVE-2012-10021

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-31T19:36:24Z

Weaknesses