A stack-based buffer overflow exists in the get_merge_ipaddr function of the httpd binary on Linksys E1200 v2 routers (Firmware E1200_v2.0.11.001_us.tar.gz). The function concatenates up to four user-supplied CGI parameters matching <parameter>_0~3 into a fixed-size buffer (a2) without bounds checking. Remote attackers can exploit this vulnerability via specially crafted HTTP requests to execute arbitrary code or cause denial of service without authentication.
Use CWE-121, Linksys vendor hub and E1200 Firmware product page to widen CVE-2025-60690 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2022-38555, CVE-2025-60691 and CVE-2025-60692 for nearby disclosures in the same product family.