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Full vulnerability report · 2026
CVE-2026-9171High confidence

Vulnerabilities in IBM WebSphere Application affects IBM PowerVM Novalink.

IBM · PowerVM Novalink

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Fix not verified
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-45250

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Fix not verified
01

What, why and how

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.

What

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.

Why

The product does not properly control the allocation and maintenance of a limited resource.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

What

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.

Why

The product does not properly control the allocation and maintenance of a limited resource.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Uncontrolled Resource Consumption → disrupt the affected service
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-400 ↗

CWE-400: Uncontrolled Resource Consumption. The product does not properly control the allocation and maintenance of a limited resource.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedDenial of serviceCWE-400
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2026-2606IBM WebSphere Application Server: Mehrere Schwachstellen ermöglichen Denial of Service

Ein Angreifer kann mehrere Schwachstellen in IBM WebSphere Application Server ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-1094Multiples vulnérabilités dans les produits IBM

org/CVERecord?id=CVE-2026-69248 Référence CVE CVE-2026-69249 https://www.cve.org/CVERecord?id=CVE-2026-69249 Référence CVE CVE-2026-7246 https://www.cve.org/CVERecord?id=CVE-2026-7246 Référence CVE CVE-2026-75838 https://www.cve.org/CVERecord?id=CVE-2026-75838 Référence CVE CVE-2026-8177 https://www.cve.org/CVERecord?id=CVE-2026-8177 Référence CVE CVE-2026-8400 https://www.cve.org/CVERecord?id=CVE-2026-8400 Référence CVE CVE-2026-8646 https://www.cve.org/CVERecord?id=CVE-2026-8646 Référence CVE CVE-2026-8723 https://www.cve.org/CVERecord?id=CVE-2026-8723 Référence CVE CVE-2026-9071 https://www.cve.org/CVERecord?id=CVE-2026-9071 Référence CVE CVE-2026-9171 https://www.cve.org/CVERecord?id=CVE-2026-9171 Référence CVE CVE-2026-9320 https://www.cve.org/CVERecord?id=CVE-2026-9320 Référence CVE CVE-2026-9322 https://www.cve.org/CVERecord?id=CVE-2026-9322 Référence CVE CVE-2026-9358 https://www.cve.org/CVERecord?id=CVE-2026-9358 Référence CVE CVE-2026-9563 https://www.cve.org/CVERecord?id=CVE-2026-9563 Référence CVE CVE-2026-9678 https://www.cve.org/CVERecord?id=CVE-2026-9678 Référence CVE CVE-2026-9679 https://www.cve.org/CVERecord?id=CVE-2026-9679 Référence CVE CVE-2026-9697 https://www.cve.org/CVERecord?id=CVE-2026-9697 Référence CVE CVE-2026-9698 https://www.cve.org/CVERecord?id=CVE-2026-9698 Ge

Official advisory
CERT-FR · French · CERTFR-2026-AVI-1032Multiples vulnérabilités dans les produits IBM

org/CVERecord?id=CVE-2026-57819 Référence CVE CVE-2026-60147 https://www.cve.org/CVERecord?id=CVE-2026-60147 Référence CVE CVE-2026-64958 https://www.cve.org/CVERecord?id=CVE-2026-64958 Référence CVE CVE-2026-7246 https://www.cve.org/CVERecord?id=CVE-2026-7246 Référence CVE CVE-2026-7771 https://www.cve.org/CVERecord?id=CVE-2026-7771 Référence CVE CVE-2026-8400 https://www.cve.org/CVERecord?id=CVE-2026-8400 Référence CVE CVE-2026-8646 https://www.cve.org/CVERecord?id=CVE-2026-8646 Référence CVE CVE-2026-9002 https://www.cve.org/CVERecord?id=CVE-2026-9002 Référence CVE CVE-2026-9071 https://www.cve.org/CVERecord?id=CVE-2026-9071 Référence CVE CVE-2026-9171 https://www.cve.org/CVERecord?id=CVE-2026-9171 Référence CVE CVE-2026-9320 https://www.cve.org/CVERecord?id=CVE-2026-9320 Référence CVE CVE-2026-9322 https://www.cve.org/CVERecord?id=CVE-2026-9322 Référence CVE CVE-2026-9375 https://www.cve.org/CVERecord?id=CVE-2026-9375 Référence CVE CVE-2026-9563 https://www.cve.org/CVERecord?id=CVE-2026-9563 Référence CVE CVE-2026-9762 https://www.cve.org/CVERecord?id=CVE-2026-9762 Gestion détaillée du document le 14 août 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0986Multiples vulnérabilités dans les produits IBM

.cve.org/CVERecord?id=CVE-2026-6915 Référence CVE CVE-2026-6938 https://www.cve.org/CVERecord?id=CVE-2026-6938 Référence CVE CVE-2026-7771 https://www.cve.org/CVERecord?id=CVE-2026-7771 Référence CVE CVE-2026-8053 https://www.cve.org/CVERecord?id=CVE-2026-8053 Référence CVE CVE-2026-8199 https://www.cve.org/CVERecord?id=CVE-2026-8199 Référence CVE CVE-2026-8200 https://www.cve.org/CVERecord?id=CVE-2026-8200 Référence CVE CVE-2026-8201 https://www.cve.org/CVERecord?id=CVE-2026-8201 Référence CVE CVE-2026-8202 https://www.cve.org/CVERecord?id=CVE-2026-8202 Référence CVE CVE-2026-8400 https://www.cve.org/CVERecord?id=CVE-2026-8400 Référence CVE CVE-2026-9171 https://www.cve.org/CVERecord?id=CVE-2026-9171 Référence CVE CVE-2026-9322 https://www.cve.org/CVERecord?id=CVE-2026-9322 Référence CVE CVE-2026-9538 https://www.cve.org/CVERecord?id=CVE-2026-9538 Référence CVE CVE-2026-9762 https://www.cve.org/CVERecord?id=CVE-2026-9762 Gestion détaillée du document le 07 août 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0901Multiples vulnérabilités dans les produits IBM

org/CVERecord?id=CVE-2026-54269 Référence CVE CVE-2026-54270 https://www.cve.org/CVERecord?id=CVE-2026-54270 Référence CVE CVE-2026-54285 https://www.cve.org/CVERecord?id=CVE-2026-54285 Référence CVE CVE-2026-5795 https://www.cve.org/CVERecord?id=CVE-2026-5795 Référence CVE CVE-2026-6321 https://www.cve.org/CVERecord?id=CVE-2026-6321 Référence CVE CVE-2026-6322 https://www.cve.org/CVERecord?id=CVE-2026-6322 Référence CVE CVE-2026-6918 https://www.cve.org/CVERecord?id=CVE-2026-6918 Référence CVE CVE-2026-7246 https://www.cve.org/CVERecord?id=CVE-2026-7246 Référence CVE CVE-2026-8408 https://www.cve.org/CVERecord?id=CVE-2026-8408 Référence CVE CVE-2026-9171 https://www.cve.org/CVERecord?id=CVE-2026-9171 Référence CVE CVE-2026-9322 https://www.cve.org/CVERecord?id=CVE-2026-9322 Gestion détaillée du document le 17 juillet 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0865Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-11708 Référence CVE CVE-2026-11712 https://www.cve.org/CVERecord?id=CVE-2026-11712 Référence CVE CVE-2026-11714 https://www.cve.org/CVERecord?id=CVE-2026-11714 Référence CVE CVE-2026-11806 https://www.cve.org/CVERecord?id=CVE-2026-11806 Référence CVE CVE-2026-21441 https://www.cve.org/CVERecord?id=CVE-2026-21441 Référence CVE CVE-2026-26007 https://www.cve.org/CVERecord?id=CVE-2026-26007 Référence CVE CVE-2026-34073 https://www.cve.org/CVERecord?id=CVE-2026-34073 Référence CVE CVE-2026-39892 https://www.cve.org/CVERecord?id=CVE-2026-39892 Référence CVE CVE-2026-50645 https://www.cve.org/CVERecord?id=CVE-2026-50645 Référence CVE CVE-2026-9171 https://www.cve.org/CVERecord?id=CVE-2026-9171 Référence CVE CVE-2026-9322 https://www.cve.org/CVERecord?id=CVE-2026-9322 Référence CVE CVE-2026-9563 https://www.cve.org/CVERecord?id=CVE-2026-9563 Gestion détaillée du document le 10 juillet 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0834Multiples vulnérabilités dans les produits IBM

.cve.org/CVERecord?id=CVE-2026-6052 Référence CVE CVE-2026-6053 https://www.cve.org/CVERecord?id=CVE-2026-6053 Référence CVE CVE-2026-6938 https://www.cve.org/CVERecord?id=CVE-2026-6938 Référence CVE CVE-2026-7246 https://www.cve.org/CVERecord?id=CVE-2026-7246 Référence CVE CVE-2026-8646 https://www.cve.org/CVERecord?id=CVE-2026-8646 Référence CVE CVE-2026-8858 https://www.cve.org/CVERecord?id=CVE-2026-8858 Référence CVE CVE-2026-9006 https://www.cve.org/CVERecord?id=CVE-2026-9006 Référence CVE CVE-2026-9071 https://www.cve.org/CVERecord?id=CVE-2026-9071 Référence CVE CVE-2026-9072 https://www.cve.org/CVERecord?id=CVE-2026-9072 Référence CVE CVE-2026-9171 https://www.cve.org/CVERecord?id=CVE-2026-9171 Référence CVE CVE-2026-9320 https://www.cve.org/CVERecord?id=CVE-2026-9320 Référence CVE CVE-2026-9322 https://www.cve.org/CVERecord?id=CVE-2026-9322 Gestion détaillée du document le 03 juillet 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
2.2.02.2.12.2.1.1; 2.3.02.3.0.12.3.12.3.2
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 17 Jul 2026 · Last source change 30 Jul 2026, 15:47 UTC · CWE-400 · Uncontrolled Resource Consumption

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-45250
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2026-45250↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-9171 · cve.blacktree.nl