CVE-2025-30733: Vulnerability in the RDBMS Listener component of Oracle Database Server

Routine

MEDIUM 6.5UPGRADE

CVE-2025-30733 is a medium-severity flaw (CVSS 6.5) affecting rdbms listener. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the RDBMS Listener component of Oracle Database Server. Supported versions that are affected are 19.3-19.26, 21.3-21.17 and 23.4-23.7. Easily exploitable vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise RDBMS Listener. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized access to cr

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-287
Published	2025-04-15
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

2025-04-15 21:16 UTCPublished CVE record published
2026-06-17 09:09 UTCUpdated Record last modified

oracle rdbms listener UPGRADE

Affected: >= 19.3 and <= 19.26 · >= 21.3 and <= 21.17 · >= 23.4 and <= 23.7

Fixed in: newer than 23.7

Safe to downgrade to: a release before 19.3

1. Check installed version

apt-cache policy rdbms-listener || rpm -q rdbms-listener || rdbms-listener --version

2. UPGRADE to newer than 23.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rdbms-listener

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rdbms-listener

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 19.3 (Debian / Ubuntu)

apt-cache madison rdbms-listener sudo apt install rdbms-listener=<VERSION_BEFORE_19.3> sudo apt-mark hold rdbms-listener

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

dnf --showduplicates list rdbms-listener sudo dnf downgrade rdbms-listener-<VERSION_BEFORE_19.3> sudo dnf versionlock add rdbms-listener

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-2025-30733?

rdbms listener: upgrade to newer than 23.7. Exact commands for each OS are on this page.

Is CVE-2025-30733 being exploited?

CVE-2025-30733 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-2025-30733 affect?

CVE-2025-30733 affects rdbms listener. Severity is medium (CVSS 6.5). Vulnerability in the RDBMS Listener component of Oracle Database Server. Supported versions that are affected are 19.3-19.26, 21.3-21.17 and 23.4-23.7. Easily exploitable vulnerability allows unauthenticated attacker with network access v

How urgent is CVE-2025-30733?

Priority 31/100. No elevated risk signals yet.

Software pages

Oracle Database vulnerabilities

References

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