Stack Buffer Overflow in D-Link DIR-605L 1() (RCE)
CVE-2012-10021 Published on July 31, 2025
D-Link DIR-605L Captcha Handling Buffer Overflow
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.
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2012-10021 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2012-10021
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Affected Versions
D-Link DIR-605L:- Version 1.12, <= 1.13 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.