CVE-2012-4516

librdmacm 1.0.16, when ibacm.port is not specified, connects to port 6125, which allows remote attackers to specify the address resolution information for the application via a malicious ib_acm service.

Published: 2012-10-22 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-4516 is rated Moderate Risk (44.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.40%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-4516

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-02 0.49% 0.40% -0.09%
2 2025-12-14 0.40% 0.49% +0.09%
3 2025-03-30 — 0.40% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-4516

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 4.9 [email protected]

Weakness enumeration for CVE-2012-4516

OS Trackers for CVE-2012-4516

vendor priority summary link
redhat low — https://access.redhat.com/security/cve/CVE-2012-4516
ubuntu low CVE-2012-4516 low priority: Ubuntu including 1 source packages (librdmacm), 24 status rows across 24 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hardy, hirsute, lucid, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): ignored 11, DNE 8, not-affected 3, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2012-4516

Affected software / configurations for CVE-2012-4516

Vendor Product Version Raw CPE
openfabrics librdmacm 1.0.16 cpe:2.3:a:openfabrics:librdmacm:1.0.16:*:*:*:*:*:*:*

References for CVE-2012-4516

cvelogic Threat Intelligence