CVE-2012-4516

CVE-2012-4516 describes a vulnerability in librdmacm version 1.0.16, specifically affecting OpenFabrics librdmacm. When the ibacm.port is not explicitly defined, the software defaults to connecting on port 6125, allowing remote attackers to manipulate address resolution information for applications through a malicious ib_acm service. This medium-severity vulnerability (CVSS 5.8) has a network attack vector, moderate complexity, and could lead to partial confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this decade-old vulnerability.