[UPDATE] [hoch] IBM WebSphere Application Server Liberty: Mehrere Schwachstellen

highCVE-2026-10571 CVE-2026-14525 CVE-2026-18499

Ein Angreifer kann mehrere Schwachstellen in IBM WebSphere Application Server Liberty ausnutzen, um einen Denial of Service Angriff durchzuführen, um Sicherheitsvorkehrungen zu umgehen, und um seine Privilegien zu erhöhen.

CSIRTS triage

vendor: IBM product: WebSphere Application Server Liberty Denial of service Authentication bypass Privilege escalation

What: An attacker can exploit multiple vulnerabilities to perform denial of service, bypass security measures, and escalate privileges.
Who is affected: Any WebSphere Application Server Liberty deployment.
Urgency: High priority; multiple attack vectors including privilege escalation warrant immediate remediation.
Action: Apply IBM security patches for CVE-2026-10571, CVE-2026-14525, and CVE-2026-18499 immediately.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-09-09
Exploitation: Not in CISA KEV at last sync

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2807

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-2026-105710.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 20% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-145250.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 23% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-184990.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 20% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-10571	coverage & exploitation status	NVD · CVE.org
CVE-2026-14525	coverage & exploitation status	NVD · CVE.org
CVE-2026-18499	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 21, 2026)cert-fr-avis
unknownexploitedMultiple vulnerabilities in IBM products (August 14, 2026)cert-fr-avis
criticalCVE-2026-14525: IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 IBM WebSphere Application…nvd
mediumCVE-2026-10571: IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is affected by a denial o…nvd
unknownIBM WebSphere Products Multiple Vulnerabilitieshkcert
highCVE-2026-18499: IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is vulnerable to a privil…nvd

Recent advisories for IBM WebSphere Application

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

medium[UPDATE] [mittel] IBM WebSphere Application Server: Mehrere Schwachstellencert-bund · 2026-09-11
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mediumCVE-2026-9336: IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to a denial of service, caused by s…nvd · 2026-09-10