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CVE-2012-10021

D-Link DIR-605L Captcha Handling Buffer Overflow

Published: Jul 31, 2025Updated: Sep 23, 2025 Sources: CVE List NVD BDUCWE-121
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
3.0%
Top 14.6%
CISA KEV
Not in KEV
Exploits
4 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-121

Affected Products

DIR-605LD-LinkNetworking Infrastructure
dir-605l firmwaredlinkNetworking Infrastructure
DIR-605LD-Link Corp.Networking Infrastructure
d-linkcommercialTWNetworking Infrastructure
dlinkcommercialTWNetworking Infrastructure
d-link corp.commercialTWNetworking Infrastructureaka d-link corporation, d-link international

Attack Graph

Products CVE Techniques Tactics

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Exploitability

4 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/dlink_dir605l_captcha_bof.rb
raw.githubusercontent.com
https://web.archive.org/web/20121012062554/http://www.devttys0.com/2012/10/exploiting-a-mips-stack-overflow/
web.archive.org
https://www.exploit-db.com/exploits/29127
exploit-db.com
and 5 more references View all →

Timeline

Published
Jul 31, 2025
Last Updated
Sep 23, 2025

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