CVE-2012-10021

UNKNOWN 0.0

D-Link DIR-605L Captcha Handling Buffer Overflow

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-121
Vendor	d-link
Product	dir-605l
Published	Jul 31, 2025
Last Updated	Apr 7, 2026

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Affected Versions

D-Link / DIR-605L

1.12 ≤ 1.13

References

NVD ↗ CVE.org ↗ EPSS Data ↗

raw.githubusercontent.com: https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/dlink_dir605l_captcha_bof.rb web.archive.org: https://web.archive.org/web/20121012062554/http://www.devttys0.com/2012/10/exploiting-a-mips-stack-overflow/ exploit-db.com: https://www.exploit-db.com/exploits/29127 forums.dlink.com: https://forums.dlink.com/index.php?topic=51923.0 vulncheck.com: https://www.vulncheck.com/advisories/dlink-dir605l-captcha-handling-stack-based-buffer-overflow

Credits

Craig Heffner