What is the CVSS score of EUVD-2026-83279?

EUVD-2026-83279 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-2026-83279?

Yes, a patch is available for EUVD-2026-83279. Update the affected software to the latest version immediately.

WebSphere Application Server EUVD-2026-83279

| CVE-2026-11540 MEDIUM

Incorrect Authorization (CWE-863)

2026-09-18 ibm

GHSA-gw9h-2p46-wm4x

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 request to the FileTransfer servlet (AV:N/AC:L/PR:N/UI:N) yielding only limited file-system information disclosure (C:L), with no integrity or availability impact.

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 could allow a remote attacker to obtain sensitive information about the file system through the FileTransfer servlet.

AnalysisAI

IBM WebSphere Application Server 9.0 and 8.5 allow remote, unauthenticated attackers to obtain sensitive file-system information through the FileTransfer servlet due to incorrect authorization (CWE-863). Exploitation requires network access to the servlet endpoint, which is part of the administrative/deployment interface, and impact is limited to confidentiality (CVSS 5.3, C:L). …

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Vulnerability AssessmentAI

Exploitation	Exploitation requires network reachability to the WebSphere Application Server 9.0 or 8.5 FileTransfer servlet endpoint, which is part of the administrative/deployment infrastructure. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	This is a genuine but low-to-moderate severity issue, not a high-urgency priority. … 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	IBM has released a patch for this issue; apply the fix pack specified in the IBM advisory at https://www.ibm.com/support/pages/node/7286610. … Detailed patch versions, workarounds, and compensating controls in full report.