Vulnerability · CVE-2012-10021
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.
Published Jul 31, 2025 · catalog updated May 14, 2026 · D-Link DIR-605L
Last checked Oct 30, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2012-10021. EPSS is 4.79%. Act only if a listed version of D-Link DIR-605L is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-4445 · Medium
- CVE-2025-4443 · Medium
- CVE-2025-4442 · High
- CVE-2025-4441 · High
- Severity
- Critical9.3
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 4.79%
- Remediation
- Vendor / distro source
- Affected products
- vendor D-Link DIR-605L 1.12 ≤1.13
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor D-Link DIR-605L 1.12 ≤1.131.12 ≤1.13
How to fix CVE-2012-10021
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in 1.12 ≤1.13
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2012-10021. EPSS is 4.79%. Act only if a listed version of D-Link DIR-605L is installed.
Which versions are affected?
Compare what you have installed with D-Link DIR-605L 1.12 ≤1.13 1.12 ≤1.13. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 4.79%. There is no CISA KEV listing. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jul 31, 2025 · EUVD
Detected
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
May 14, 2026 · EUVD
Updated
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
Sources
- CVE.orgVulnerability recordCVE-2012-10021
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2012-10021
30-day exploitation probability 4.79%
first.org - EUVDVulnerability recordEUVD-2012-6567
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
euvd.enisa.europa.eu - Metasploit ModulesPublic exploit moduleexploit_linux/http/dlink_dir605l_captcha_bof
Public module reference (manual). Module source is not copied into this catalog.
rapid7.com
References
Freshness
Last verified in this catalog Oct 27, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- Metasploit ModulesOct 30, 2026
- FIRST EPSSOct 24, 2026
- CVE.orgOct 21, 2026
- EUVDOct 20, 2026