[UPDATE] [high] IBM WebSphere Application Server and Application Server Liberty: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in IBM WebSphere Application Server Liberty and IBM WebSphere Application Server to manipulate files, conduct a Cross-Site Scripting attack, execute arbitrary code, disclose information, and perform a Denial of Service attack.
CSIRTS triage
- What
- An attacker can exploit multiple vulnerabilities in IBM WebSphere Application Server and Application Server Liberty to manipulate files and execute arbitrary code.
- Who is affected
- Deployments of IBM WebSphere Application Server and Application Server Liberty are affected.
- Urgency
- Remediation is urgent due to the high severity and potential for arbitrary code execution.
- Action
- Apply the latest patches for IBM WebSphere Application Server and Application Server Liberty.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2050
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-113830.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-115360.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-115410.42% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 34% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-115940.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-117070.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 12% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-118060.47% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-424020.71% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 51% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-424030.76% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 53% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-424040.50% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-11383 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-11536 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-11541 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-11594 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-11707 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-11806 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-42402 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-42403 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-42404 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownexploitedMultiple vulnerabilities in IBM products (August 14, 2026)cert-fr-avis
- highCVE-2026-11536: IBM WebSphere Application Server 9.0, and 8.5 is affected by a remote code execution vulnerabi…nvd
- criticalCVE-2026-11707: IBM Tivoli System Automation Application Manager 4.1 and IBM WebSphere Application Server is a…nvd
- mediumCVE-2026-11383: IBM Tivoli System Automation Application Manager 4.1 and IBM WebSphere Application Server is a…nvd
- unknownMultiple vulnerabilities in IBM products (July 24, 2026)cert-fr-avis
- high[NEW] [high] Oracle Fusion Middleware: Multiple vulnerabilitiescert-bund
- high[NEW] [high] Oracle Commerce: Multiple vulnerabilitiescert-bund
- high[NEW] [high] Oracle Construction and Engineering: Multiple vulnerabilitiescert-bund
- unknownMultiple vulnerabilities in IBM products (July 10, 2026)cert-fr-avis
- unknownMultiple vulnerabilities in IBM products (July 3, 2026)cert-fr-avis
- highCVE-2026-11541: IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 1…nvd
- highCVE-2026-11594: IBM WebSphere Application Server 9.0, and 8.5 is affected by a cross-site scripting vulnerabil…nvd
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