CVE-2026-3621

mediumpriority · track · 24EPSS 0.003 · 20 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.28% (20th) EPSS

CVSS 5.9 · medium

Is it mine?

11 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.4 IBM WebSphere Application Server Liberty is vulnerable to identity spoofing under limited conditions when an application is deployed without authentication and authorization configured.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.4–7.5

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 2.2 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@us.ibm.com USexploitability 1.6 · impact 5.9

v3.15.4mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269US

affected products (11)

Products and version ranges known to be affected.

IBM TXSeries 8.2all versionscert_bundDEcpe:/a:ibm:txseries:for_multiplatforms_8.2
IBM TXSeries 9.1all versionscert_bundDEcpe:/a:ibm:txseries:for_multiplatforms_9.1
IBM TXSeries for Multiplatforms 10.1all versionscert_bundDEcpe:/a:ibm:txseries:for_multiplatforms_10.1
IBM TXSeries for multiplatforms 11.1all versionscert_bundDEcpe:/a:ibm:txseries:for_multiplatforms_11.1
IBM Tivoli Monitoringall versionscert_bundDEcpe:/a:ibm:tivoli_monitoring:-
IBM WebSphere Application Server <26.0.0.4 PH70352all versionscert_bundDE
IBM WebSphere Application Server <26.0.0.5all versionscert_bundDE
IBM WebSphere Application Server< 26.0.0.4 PH70352cert_bundDE
IBM WebSphere Application Server< 26.0.0.5cert_bundDE
IBM WebSphere Application Server - Liberty≤ 17.0.0.3 ≤26.0.0.4enisa_euvdEU
ibm websphere application server17.0.0.3 → 26.0.0.5nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1237IBM WebSphere Application Server: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2026-04-22csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in IBM WebSphere Application Server ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2026-04-23modified 2026-10-26

references (5)

External citations — patches, advisories, analysis.

scry

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