CVE-2014-125122

A stack-based buffer overflow vulnerability exists in the tmUnblock.cgi endpoint of the Linksys WRT120N wireless router. The vulnerability is triggered by sending a specially crafted HTTP POST request with an overly long TM_Block_URL parameter to the endpoint. By exploiting this flaw, an unauthenticated remote attacker can overwrite memory in a controlled manner, enabling them to temporarily reset the administrator password of the device to a blank value. This grants unauthorized access to the router’s web management interface without requiring valid credentials.

CVSS

No CVSS.

References

Link	Resource
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/admin/http/linksys_tmunblock_admin_reset_bof.rb
https://web.archive.org/web/20210424073058/http://www.devttys0.com/2014/02/wrt120n-fprintf-stack-overflow/
https://www.exploit-db.com/exploits/31758
https://www.vulncheck.com/advisories/linksys-wrt120n-stack-based-buffer-overflow-admin-password-reset

Configurations

No configuration.

History

31 Jul 2025, 15:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-07-31 15:15

Updated : 2025-07-31 18:42

NVD link : CVE-2014-125122

Mitre link : CVE-2014-125122

CVE.ORG link : CVE-2014-125122

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

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