CVE-2021-2134: Vulnerability in the Enterprise Manager for Fusion Middleware product of Oracle Enterprise Manager (component:

Routine

MEDIUM 6.5DOWNGRADE

CVE-2021-2134 is a medium-severity flaw (CVSS 6.5) affecting enterprise manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Enterprise Manager for Fusion Middleware product of Oracle Enterprise Manager (component: FMW Control Plugin). The supported version that is affected is 12.2.1.4. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Enterprise Manager for Fusion Middleware. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Published	2021-04-22
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

2021-04-22 22:15 UTCPublished CVE record published
2026-06-17 03:48 UTCUpdated Record last modified

oracle enterprise manager DOWNGRADE

Affected: 12.2.1.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.2.1.4

1. Check installed version

apt-cache policy enterprise-manager || rpm -q enterprise-manager || enterprise-manager --version

2. No fixed release: DOWNGRADE to a release before 12.2.1.4 (Debian / Ubuntu)

apt-cache madison enterprise-manager sudo apt install enterprise-manager=<VERSION_BEFORE_12.2.1.4> sudo apt-mark hold enterprise-manager

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

dnf --showduplicates list enterprise-manager sudo dnf downgrade enterprise-manager-<VERSION_BEFORE_12.2.1.4> sudo dnf versionlock add enterprise-manager

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-2021-2134?

enterprise manager: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-2134 being exploited?

CVE-2021-2134 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-2021-2134 affect?

CVE-2021-2134 affects enterprise manager. Severity is medium (CVSS 6.5). Vulnerability in the Enterprise Manager for Fusion Middleware product of Oracle Enterprise Manager (component: FMW Control Plugin). The supported version that is affected is 12.2.1.4. Easily exploitable vulnerability allows low privileged a

How urgent is CVE-2021-2134?

Priority 38/100. No elevated risk signals yet.

Related CVEs

CVE-2022-29596 CRITICAL 9.8 DOWNGRADE MicroStrategy Enterprise Manager 2022 allows authentication bypass by triggering a login failure and then ente
CVE-2021-2008 HIGH 7.3 DOWNGRADE Vulnerability in the Enterprise Manager for Fusion Middleware product of Oracle Enterprise Manager (component:
CVE-2020-2641 MEDIUM 6.0 DOWNGRADE Vulnerability in the Enterprise Manager for Oracle Database product of Oracle Enterprise Manager (component: D
CVE-2020-2640 MEDIUM 6.0 DOWNGRADE Vulnerability in the Enterprise Manager for Oracle Database product of Oracle Enterprise Manager (component: T
CVE-2020-2638 MEDIUM 6.0 DOWNGRADE Vulnerability in the Enterprise Manager for Oracle Database product of Oracle Enterprise Manager (component: E

References

← Back to latest CVEs