What is the CVSS score of EUVD-2026-83278?

EUVD-2026-83278 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.3%.

Is there a patch available for EUVD-2026-83278?

Yes, a patch is available for EUVD-2026-83278. Update the affected software to the latest version immediately.

WebSphere Application Server EUVD-2026-83278

| CVE-2026-11539 MEDIUM

Missing Authentication for Critical Function (CWE-306)

2026-09-18 ibm

GHSA-r353-h774-697m

Authentication Bypass IBM Websphere Application Server

5.3

CVSS 3.1 · Vendor: ibm

Severity by source

Vendor (ibm) PRIMARY

5.3 MEDIUM

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

vuln.today AI

5.3 MEDIUM

Remote unauthenticated low-complexity auth bypass (CWE-306) on a network connector; impact accepted as vendor-scoped limited disclosure, so C:L with I:N/A:N.

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

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (ibm).

CVSS VectorVendor: ibm

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Sep 18, 2026 - 20:06 vuln.today

DescriptionCVE.org

IBM WebSphere Application Server 9.0 and 8.5 is affected by an authentication bypass vulnerability in the SOAP/JMX connector.

AnalysisAI

Unauthenticated network access to the SOAP/JMX administrative connector on IBM WebSphere Application Server 8.5 and 9.0 can bypass authentication, allowing an attacker to read limited information from the server (CWE-306, CVSS 5.3). The flaw is remotely reachable without credentials or user interaction (PR:N/UI:N/AC:L), but impact is confined to low confidentiality loss - no code execution, configuration change, or denial of service. …

Unlock full vulnerability intelligence

Risk assessment & exploitation conditions
Attack chain visualization
Remediation with exact patch versions
Threat intelligence from 22 sources
Personal watchlist & email alerts

Continue with Google Continue with GitHub

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

technique details hidden

Exploit

technique details hidden

Execution

technique details hidden

Impact

technique details hidden

Access

technique details hidden

Exploit

technique details hidden

Execution

technique details hidden

Impact

technique details hidden

Vulnerability AssessmentAI

Exploitation	Requires network access to the WebSphere Application Server administrative SOAP/JMX connector endpoint on a vulnerable 9.0 or 8.5 instance; no authentication, credentials, or user interaction are needed (PR:N/UI:N/AC:L). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	This is a genuine but limited-impact issue. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation	Patch available per vendor advisory: IBM publishes the fix for WebSphere Application Server 8.5 and 9.0 at https://www.ibm.com/support/pages/node/7286610 - apply the interim fix or fix-pack level listed there for your exact maintenance level, as the input data does not specify a single version number applicable to all installations. … Detailed patch versions, workarounds, and compensating controls in full report.