Resource exhaustion in IBM Aix

CVE-2025-3221

IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 could allow a remote attacker to cause a denial of service due to insufficient validation of incoming request resources.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (36.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-3221: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.001

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-3221?
CVE-2025-3221 is a high-severity vulnerability in IBM Aix, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2025-06-21.
How severe is CVE-2025-3221?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-3221 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.