CVE-2026-47063: Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Libraries). Supported versions that are affected are Oracle Java SE: 8u491, 8u491-perf, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1; Oracle GraalVM for JDK: 17.0.19 and 21.0.11; Oracle GraalVM Enterprise Edition: 21.3.18. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle

highCVSS 7.5CVE-2026-47063

CSIRTS triage

vendor: Oracle product: Java SEOtheraffected: 8u491, 8u491-perf, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1

What: A vulnerability exists in Oracle Java SE and GraalVM that affects certain library components.
Who is affected: Users of the specified versions of Oracle Java SE and GraalVM are affected.
Urgency: Remediation is urgent due to the high severity rating and potential for exploitation.
Action: Update to the latest version of Oracle Java SE or GraalVM.

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

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: high — CVSS 7.5
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47063

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-2026-470630.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-47063	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

medium[NEW] [medium] Oracle Java SE: Multiple vulnerabilitiescert-bund
unknownMultiple vulnerabilities in Oracle Java SE (July 23, 2026)cert-fr-avis
unknownNCSC-2026-0261 [1.00] [M/H] Vulnerabilities fixed in Oracle Java SEncsc-nl
highCVE-2026-47063: Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition…nvd

Recent advisories for Oracle Java SE

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[NEW] [medium] Oracle Java SE: Multiple vulnerabilitiescert-bund · 2026-07-31
unknownMultiple vulnerabilities in Oracle Java SE (July 23, 2026)cert-fr-avis · 2026-07-23
unknownNCSC-2026-0261 [1.00] [M/H] Vulnerabilities fixed in Oracle Java SEncsc-nl · 2026-07-22
highCVE-2026-62574: Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition…nvd · 2026-07-21
mediumCVE-2026-60526: Vulnerability in Oracle Java SE (component: Installation). Supported versions that are affecte…nvd · 2026-07-21
lowCVE-2026-60166: Vulnerability in Oracle Java SE (component: JavaFX). The supported version that is affected is…nvd · 2026-07-21