PatchTheCVECVE-2012-4517: ibacm before 1.0.6 does not properly manage reference counts for multicast connections, which allows remote at
CVE-2012-4517 is a medium-severity flaw (CVSS 5.0) affecting ibacm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
ibacm before 1.0.6 does not properly manage reference counts for multicast connections, which allows remote attackers to cause a denial of service (ibacm service crash) via a crafted join response.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.0 (Medium) |
| EPSS exploit chance | 2.8% (top 13%) |
| CISA exploited list | No |
| Weakness | CWE-399 |
| Published | 2012-10-22 |
| Last modified | 2026-06-16 |
Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2012-4517?
ibacm: upgrade to newer than 1.0.5. Exact commands for each OS are on this page.
Is CVE-2012-4517 being exploited?
CVE-2012-4517 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2012-4517 affect?
CVE-2012-4517 affects ibacm. Severity is medium (CVSS 5.0). ibacm before 1.0.6 does not properly manage reference counts for multicast connections, which allows remote attackers to cause a denial of service (ibacm service crash) via a crafted join response.
How urgent is CVE-2012-4517?
Priority 39/100. No elevated risk signals yet.
Related CVEs
- CVE-2012-4518 LOW 3.6 DOWNGRADE ibacm 1.0.7 creates files with world-writable permissions, which allows local users to overwrite the ib_acm da