CVE-2023-21997: Vulnerability in the Oracle User Management product of Oracle E-Business Suite (component: Proxy User Delegati

Routine

MEDIUM 4.3UPGRADE

CVE-2023-21997 is a medium-severity flaw (CVSS 4.3) affecting user management. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Oracle User Management product of Oracle E-Business Suite (component: Proxy User Delegation). Supported versions that are affected are 12.2.3-12.2.12. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle User Management. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle User Management accessible data. CVSS 3.1

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Published	2023-04-18
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

2023-04-18 20:15 UTCPublished CVE record published
2026-06-17 05:34 UTCUpdated Record last modified

oracle user management UPGRADE

Affected: >= 12.2.3 and <= 12.2.12

Fixed in: newer than 12.2.12

Safe to downgrade to: a release before 12.2.3

1. Check installed version

apt-cache policy user-management || rpm -q user-management || user-management --version

2. UPGRADE to newer than 12.2.12 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade user-management

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade user-management

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 12.2.3 (Debian / Ubuntu)

apt-cache madison user-management sudo apt install user-management=<VERSION_BEFORE_12.2.3> sudo apt-mark hold user-management

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

dnf --showduplicates list user-management sudo dnf downgrade user-management-<VERSION_BEFORE_12.2.3> sudo dnf versionlock add user-management

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-2023-21997?

user management: upgrade to newer than 12.2.12. Exact commands for each OS are on this page.

Is CVE-2023-21997 being exploited?

CVE-2023-21997 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-2023-21997 affect?

CVE-2023-21997 affects user management. Severity is medium (CVSS 4.3). Vulnerability in the Oracle User Management product of Oracle E-Business Suite (component: Proxy User Delegation). Supported versions that are affected are 12.2.3-12.2.12. Easily exploitable vulnerability allows low privileged attacker wit

How urgent is CVE-2023-21997?

Priority 25/100. No elevated risk signals yet.

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References

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