CVE-2013-2461: Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and ea

This month

HIGH 7.5DOWNGRADEDOWNGRADEDOWNGRADE

CVE-2013-2461 is a high-severity flaw (CVSS 7.5) affecting jdk, jdk, jre. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and earlier and 6 Update 45 and earlier; the Oracle JRockit component in Oracle Fusion Middleware R27.7.5 and earlier and R28.2.7 and earlier; and OpenJDK 7 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Libraries. NOTE: the previous information is from the June and July 2013 CPU.

Why this priority

High severity
EPSS top 6%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	6.7% (top 6%)
CISA exploited list	No
Published	2013-06-18
Last modified	2026-06-16

Publisher (CNA): Oracle · Vendor: oracle · sun

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-06-18 22:55 UTCPublished CVE record published
2026-06-16 23:53 UTCUpdated Record last modified

oracle jdk DOWNGRADE

Affected: 1.6.0 update22 · 1.6.0 update23 · 1.6.0 update24 · 1.6.0 update25 · 1.6.0 update26 · 1.6.0 update27 · 1.6.0 update29 · 1.6.0 update30

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.6.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.6.0 (Debian / Ubuntu)

apt-cache madison jdk sudo apt install jdk=<VERSION_BEFORE_1.6.0> sudo apt-mark hold jdk

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

dnf --showduplicates list jdk sudo dnf downgrade jdk-<VERSION_BEFORE_1.6.0> 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.

sun jdk DOWNGRADE

Affected: 1.6.0 · 1.6.0 update_10 · 1.6.0 update_11 · 1.6.0 update_12 · 1.6.0 update_13 · 1.6.0 update_14 · 1.6.0 update_15 · 1.6.0 update_16

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.6.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.6.0 (Debian / Ubuntu)

apt-cache madison jdk sudo apt install jdk=<VERSION_BEFORE_1.6.0> sudo apt-mark hold jdk

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

dnf --showduplicates list jdk sudo dnf downgrade jdk-<VERSION_BEFORE_1.6.0> 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: 1.7.0 · 1.7.0 update1 · 1.7.0 update10 · 1.7.0 update11 · 1.7.0 update13 · 1.7.0 update15 · 1.7.0 update17 · 1.7.0 update2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.7.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.7.0 (Debian / Ubuntu)

apt-cache madison jre sudo apt install jre=<VERSION_BEFORE_1.7.0> sudo apt-mark hold jre

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

dnf --showduplicates list jre sudo dnf downgrade jre-<VERSION_BEFORE_1.7.0> 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.

oracle jrockit UPGRADE

Affected: >= r27.7.1 and <= r27.7.5 · >= r28.0.0 and <= r28.2.7

Fixed in: newer than r28.2.7

Safe to downgrade to: a release before r27.7.1

1. Check installed version

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

2. UPGRADE to newer than r28.2.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade jrockit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade jrockit

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before r27.7.1 (Debian / Ubuntu)

apt-cache madison jrockit sudo apt install jrockit=<VERSION_BEFORE_r27.7.1> sudo apt-mark hold jrockit

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list jrockit sudo dnf downgrade jrockit-<VERSION_BEFORE_r27.7.1> 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.

oracle openjdk DOWNGRADE

Affected: 1.7.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.7.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.7.0 (Debian / Ubuntu)

apt-cache madison openjdk sudo apt install openjdk=<VERSION_BEFORE_1.7.0> sudo apt-mark hold openjdk

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

dnf --showduplicates list openjdk sudo dnf downgrade openjdk-<VERSION_BEFORE_1.7.0> sudo dnf versionlock add openjdk

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-2013-2461?

jdk: 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-2013-2461 being exploited?

CVE-2013-2461 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-2013-2461 affect?

CVE-2013-2461 affects jdk, jdk, jre. Severity is high (CVSS 7.5). Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and earlier and 6 Update 45 and earlier; the Oracle JRockit component in Oracle Fusion Middleware R27.7.5 and earlier and R28.2.7 and ea

How urgent is CVE-2013-2461?

Priority 50/100. High severity; EPSS top 6%: very likely to be exploited

Software pages

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References

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