CVE-2022-21549: Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: L

This month

MEDIUM 5.3REMOTEWATCHLISTDOWNGRADEDOWNGRADEDOWNGRADE

CVE-2022-21549 is a medium-severity flaw (CVSS 5.3) affecting graalvm, jdk, jre. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Libraries). Supported versions that are affected are Oracle Java SE: 17.0.3.1; Oracle GraalVM Enterprise Edition: 21.3.2 and 22.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerab

Why this priority

Remotely exploitable, no login, no user action
On your watchlist

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

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.5% (top 15%)
CISA exploited list	No
Weakness	CWE-502
Published	2022-07-19
Last modified	2026-06-17

Publisher (CNA): Oracle · Vendor: azul · debian · fedoraproject · oracle

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-07-19 22:15 UTCPublished CVE record published
2026-06-17 04:26 UTCUpdated Record last modified

oracle graalvm DOWNGRADE

Affected: 21.3.2 · 22.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 21.3.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 21.3.2 (Debian / Ubuntu)

apt-cache madison graalvm sudo apt install graalvm=<VERSION_BEFORE_21.3.2> sudo apt-mark hold graalvm

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

dnf --showduplicates list graalvm sudo dnf downgrade graalvm-<VERSION_BEFORE_21.3.2> sudo dnf versionlock add graalvm

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 jdk DOWNGRADE

Affected: 17.0.3.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 17.0.3.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 17.0.3.1 (Debian / Ubuntu)

apt-cache madison jdk sudo apt install jdk=<VERSION_BEFORE_17.0.3.1> sudo apt-mark hold jdk

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

dnf --showduplicates list jdk sudo dnf downgrade jdk-<VERSION_BEFORE_17.0.3.1> 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: 17.0.3.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 17.0.3.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 17.0.3.1 (Debian / Ubuntu)

apt-cache madison jre sudo apt install jre=<VERSION_BEFORE_17.0.3.1> sudo apt-mark hold jre

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

dnf --showduplicates list jre sudo dnf downgrade jre-<VERSION_BEFORE_17.0.3.1> 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.

azul zulu DOWNGRADE

Affected: 17.34

Fixed in: no fixed release known

Safe to downgrade to: a release before 17.34

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 17.34 (Debian / Ubuntu)

apt-cache madison zulu sudo apt install zulu=<VERSION_BEFORE_17.34> sudo apt-mark hold zulu

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

dnf --showduplicates list zulu sudo dnf downgrade zulu-<VERSION_BEFORE_17.34> sudo dnf versionlock add zulu

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.

fedoraproject fedora MITIGATE

Affected: 35 · 36

Fixed in: no fixed release known

Safe to downgrade to: a release before 35

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

debian debian linux MITIGATE

Affected: 11.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2022-21549?

graalvm: downgrade or apply the listed mitigation; 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-2022-21549 being exploited?

CVE-2022-21549 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-2022-21549 affect?

CVE-2022-21549 affects graalvm, jdk, jre. Severity is medium (CVSS 5.3). Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Libraries). Supported versions that are affected are Oracle Java SE: 17.0.3.1; Oracle GraalVM Enterprise Edition: 21.3.2 and 22.1.0

How urgent is CVE-2022-21549?

Priority 50/100. Remotely exploitable, no login, no user action; On your watchlist

Software pages

Java vulnerabilities · Debian vulnerabilities

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References

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