CVE-2026-9171

HIGHCVSS 7.5/10EPSS 0.31%

Last modified

CVE-2026-9171 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.31%

23.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
IbmPowervm Novalink2.2.0
IbmPowervm Novalink2.2.1
IbmPowervm Novalink2.2.1.1
IbmPowervm Novalink2.3.0
IbmPowervm Novalink2.3.0.1
IbmPowervm Novalink2.3.1
IbmPowervm Novalink2.3.2

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is 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.
How severe is CVE-2026-9171?
CVE-2026-9171 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.
How do I fix CVE-2026-9171?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST