Resource exhaustion in IBM Powervm Novalink
CVE-2026-9171
IBM WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.
Vulnerability class: DoS (Denial of Service)
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: 0.005 (44.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- IBM Powervm Novalink — versions 2.2.02.2.12.2.1.1, 2.3.02.3.0.12.3.12.3.2
- IBM Powervm Novalink — versions 2.2.0, 2.2.1, 2.2.1.1
Weakness classification (CWE)
References
- www.ibm.com/support/pages/node/7280226 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-9171?
- CVE-2026-9171 is a high-severity vulnerability in IBM Powervm Novalink, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-07-17.
- How severe is CVE-2026-9171?
- High severity. CVSS v3 base score is 7.5 out of 10.