CVE-2026-47030: Vulnerability in Oracle Java SE (component: JavaFX)

Routine

LOW 3.1DOWNGRADEDOWNGRADE

CVE-2026-47030 is a low-severity flaw (CVSS 3.1) affecting jdk, jre. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in Oracle Java SE (component: JavaFX). The supported version that is affected is Oracle Java SE: 8u491. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to s

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	3.1 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 85%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-07-21
Last modified	2026-10-24

Publisher (CNA): Oracle · Vendor: oracle

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-21 22:17 UTCPublished CVE record published
2026-10-24 19:10 UTCUpdated Record last modified

oracle jdk DOWNGRADE

Affected: 1.8.0 update491

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.8.0

1. Check installed version

apt-cache policy jdk || rpm -q jdk || jdk --version

2. No fixed release: DOWNGRADE to a release before 1.8.0 (Debian / Ubuntu)

apt-cache madison jdk sudo apt install jdk=<VERSION_BEFORE_1.8.0> sudo apt-mark hold jdk

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list jdk sudo dnf downgrade jdk-<VERSION_BEFORE_1.8.0> sudo dnf versionlock add jdk

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

oracle jre DOWNGRADE

Affected: 1.8.0 update491

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.8.0

1. Check installed version

apt-cache policy jre || rpm -q jre || jre --version

2. No fixed release: DOWNGRADE to a release before 1.8.0 (Debian / Ubuntu)

apt-cache madison jre sudo apt install jre=<VERSION_BEFORE_1.8.0> sudo apt-mark hold jre

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list jre sudo dnf downgrade jre-<VERSION_BEFORE_1.8.0> sudo dnf versionlock add jre

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-47030?

jdk: downgrade or apply the listed mitigation; jre: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-47030 being exploited?

CVE-2026-47030 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-47030 affect?

CVE-2026-47030 affects jdk, jre. Severity is low (CVSS 3.1). Vulnerability in Oracle Java SE (component: JavaFX). The supported version that is affected is Oracle Java SE: 8u491. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to comprom

How urgent is CVE-2026-47030?

Priority 15/100. No elevated risk signals yet.

Software pages

Java vulnerabilities

Related CVEs

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CVE-2026-47013 MEDIUM 5.3 DOWNGRADE DOWNGRADE Vulnerability in Oracle Java SE (component: JavaFX)
CVE-2026-46968 MEDIUM 5.9 DOWNGRADE DOWNGRADE Vulnerability in Oracle Java SE (component: JSSE)
CVE-2026-47027 MEDIUM 5.3 DOWNGRADE DOWNGRADE Vulnerability in Oracle Java SE (component: Libraries)

References

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