CVE-2017-3526: Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: JAXP)

This month

MEDIUM 5.9REMOTEDOWNGRADEDOWNGRADEDOWNGRADE

CVE-2017-3526 is a medium-severity flaw (CVSS 5.9) affecting jdk, jre, jrockit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: JAXP). Supported versions that are affected are Java SE: 6u141, 7u131 and 8u121; Java SE Embedded: 8u121; JRockit: R28.3.13. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. Successful attacks of this vulnerability can result in unauthorize

Why this priority

EPSS top 10%: very likely to be exploited
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	3.8% (top 10%)
CISA exploited list	No
Published	2017-04-24
Last modified	2026-06-17

Publisher (CNA): Oracle · Vendor: oracle

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

Am I affected?

Timeline

2017-04-24 19:59 UTCPublished CVE record published
2026-06-17 01:18 UTCUpdated Record last modified

oracle jdk DOWNGRADE

Affected: 1.6 update_141 · 1.7 update_131 · 1.8 update_121

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.6

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.6 (Debian / Ubuntu)

apt-cache madison jdk sudo apt install jdk=<VERSION_BEFORE_1.6> sudo apt-mark hold jdk

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

dnf --showduplicates list jdk sudo dnf downgrade jdk-<VERSION_BEFORE_1.6> 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: 1.6 update_141 · 1.7 update_131 · 1.8 update_121

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.6

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.6 (Debian / Ubuntu)

apt-cache madison jre sudo apt install jre=<VERSION_BEFORE_1.6> sudo apt-mark hold jre

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

dnf --showduplicates list jre sudo dnf downgrade jre-<VERSION_BEFORE_1.6> 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.

oracle jrockit DOWNGRADE

Affected: r28.3.13

Fixed in: no fixed release known

Safe to downgrade to: a release before r28.3.13

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before r28.3.13 (Debian / Ubuntu)

apt-cache madison jrockit sudo apt install jrockit=<VERSION_BEFORE_r28.3.13> sudo apt-mark hold jrockit

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

dnf --showduplicates list jrockit sudo dnf downgrade jrockit-<VERSION_BEFORE_r28.3.13> sudo dnf versionlock add jrockit

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-2017-3526?

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

Is CVE-2017-3526 being exploited?

CVE-2017-3526 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-2017-3526 affect?

CVE-2017-3526 affects jdk, jre, jrockit. Severity is medium (CVSS 5.9). Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: JAXP). Supported versions that are affected are Java SE: 6u141, 7u131 and 8u121; Java SE Embedded: 8u121; JRockit: R28.3.13. Difficult to exp

How urgent is CVE-2017-3526?

Priority 48/100. EPSS top 10%: very likely to be exploited; Remotely exploitable, no login, no user action

Software pages

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References

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