CVE-2012-10021
D-Link DIR-605L Captcha Handling Buffer Overflow
CRITICAL 9.3EPSS 4.4%
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.
- Affected
- D-Link · DIR-605L
- CVSS v4.0 VULNCHECK
- 9.3 CRITICAL
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v3.1 NVD
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 4.44% chance of exploitation in the next 30 days, 91st percentile
- Published
- 2025-07-31
- Updated
- 2026-05-14
Proof-of-concept exploits (3)
- https://web.archive.org/web/20121012062554/http://www.devttys0.com/2012/10/exploiting-a-m…
- https://www.exploit-db.com/exploits/29127
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/lin…
Metasploit modules (1)
Security advisories
- https://web.archive.org/web/20121012062554/http://www.devttys0.com/2012/10/exploiting-a-m…
- https://www.vulncheck.com/advisories/dlink-dir605l-captcha-handling-stack-based-buffer-ov…
- https://forums.dlink.com/index.php?topic=51923.0