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CVE-2023-21893 Oracle Database Server

Affected softwareOracle Database Server
Affected versions19c, 21c
Severity7.5 High CVSS 3.1 2 scores
Fixed inOracle Critical Patch Update January 2023
WeaknessImproper access control (CWE-284)
Published18 Jan 2023
Updated17 Jun 2026

Description

Vulnerability in the Oracle Data Provider for .NET component of Oracle Database Server. Supported versions that are affected are 19c and 21c. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TCPS to compromise Oracle Data Provider for .NET. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Oracle Data Provider for .NET. Note: Applies also to Database client-only on Windows platform. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 3 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.61% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review automated Upstream data
  • Record active
Decided by The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached
Finding This CVE names only products the Waratek agent cannot be installed into (oracle/database_server). They ship as sealed appliance images or as native code with no application JVM, so there is no start-up line to add -javaagent to. The vulnerability may well be a Java one; it is permanently out of ARMR's reach rather than outside its subject.

CVSS

7.5 HIGH v3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H secalert_us@oracle.com Secondary published
CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H NVD Primary

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update January 2023 ↗ CPU 2023-Q1 Oracle Database Server / Oracle Data Provider for .NET (19c, 21c)
Oracle's note: Applies also to Database client-only on Windows platform.

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Database Server Oracle Data Provider for .NET 19c, 21c 19 · 21

Products and versions

1 product, 2 version entries
SourceVendorProductSchemeAffected versions
nvd oracle database server generic 19c · 21c

References

URLTags
https://www.oracle.com/security-alerts/cpujan2023.html Patch, Vendor Advisory

Timeline

Published2023-01-18By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.