CVE-2012-10021

CRITICAL 9.8CVE-2012-10021 · Published 31/07/2025 · updated 16/06/2026

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

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.

References

forums.dlink.com/index.php · Issue Tracking
raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/dlink_dir605l_captcha_bof.rb · Exploit
web.archive.org/web/20121012062554/http://www.devttys0.com/2012/10/exploiting-a-mips-stack-overflow · Exploit
exploit-db.com/exploits/29127 · Exploit
vulncheck.com/advisories/dlink-dir605l-captcha-handling-stack-based-buffer-overflow · Third Party Advisory

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