What is the CVSS score of EUVD-2026-77811?

EUVD-2026-77811 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H. EPSS exploitation probability: 0.2%.

Is there a patch available for EUVD-2026-77811?

Yes, a patch is available for EUVD-2026-77811. Update the affected software to the latest version immediately.

WebSphere Application Server EUVD-2026-77811

| CVE-2026-16185 MEDIUM

Missing Authorization (CWE-862)

2026-09-14 ibm

GHSA-9jxf-rvhw-hfpc

Authentication Bypass IBM Websphere Application Server

6.4

CVSS 3.1 · Vendor: ibm

Severity by source

Vendor (ibm) PRIMARY

6.4 MEDIUM

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

vuln.today AI

6.4 MEDIUM

Adjacent-network reachability to the admin console and high complexity from the bypass technique keep AV:A/AC:H, with no auth required and availability as the dominant impact.

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

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

Primary rating from Vendor (ibm).

CVSS VectorVendor: ibm

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

High

Lifecycle Timeline

Analysis Generated

Sep 15, 2026 - 11:34 vuln.today

CVE Published

Sep 14, 2026 - 19:57 cve.org

MEDIUM 6.4

DescriptionCVE.org

IBM WebSphere Application Server 9.0, and 8.5 could allow a remote attacker to bypass authentication on an admin console servlet.

AnalysisAI

An authentication bypass in IBM WebSphere Application Server 9.0 and 8.5 allows an attacker on an adjacent network segment to reach and invoke an administrative console servlet without valid credentials, because the servlet is missing the authorization check that should gate it (CWE-862). Successful exploitation gives low-level confidentiality and integrity exposure plus a high availability impact on the affected server. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation	Exploitation requires the attacker to be positioned on an adjacent network with routing or L2 reachability to the WebSphere administrative console servlet endpoint - this is an AV:A flaw, so internet-only attackers without a foothold on the management segment cannot reach it. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	The CVSS 3.1 vector (AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H, base 6.4) is the most informative signal here and is deliberately ambivalent: the attack vector is ADJACENT rather than NETWORK, meaning the attacker must already sit on a network segment with reachability to the console - this is not an internet-exposed, drive-by flaw. … 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 vendor patch for this issue, and the primary remediation is to apply the fix level documented in IBM's advisory at https://www.ibm.com/support/pages/node/7286610 - because the input does not name an exact fix pack or interim fix number, confirm the precise fix pack or interim fix identifier on that page before upgrading and do not assume a generic 'latest version' is sufficient. … Detailed patch versions, workarounds, and compensating controls in full report.