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CVE-2021-35551 Oracle Database

Affected softwareOracle Database
Affected versions12.2.0.1, 19c, 21c
Severity5.5 Medium CVSS 3.1 3 scores
Fixed inOracle Critical Patch Update October 2021
Published20 Oct 2021
Updated17 Jun 2026

Description

Vulnerability in the RDBMS Security component of Oracle Database Server. Supported versions that are affected are 12.2.0.1, 19c and 21c. Easily exploitable vulnerability allows high privileged attacker having DBA privilege with network access via Oracle Net to compromise RDBMS Security. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of RDBMS Security as well as unauthorized update, insert or delete access to some of RDBMS Security accessible data. CVSS 3.1 Base Score 5.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H).

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 5 years ago.
  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.79% 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 human Researcher
  • Record active
Decided by Manual classification of this CVE in the legacy dataset
Finding A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

CVSS

5.5 MEDIUM v3.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H 3 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 5.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H secalert_us@oracle.com Secondary published
CVSS 3.1 5.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H NVD Primary
CVSS 2.0 5.5 none AV:N/AC:L/Au:S/C:N/I:P/A:P NVD Primary

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update October 2021 ↗ CPU 2021-Q4 Oracle Database Server / RDBMS Security (12.2.0.1, 19c, 21c)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Database Server RDBMS Security 12.2.0.1, 19c, 21c 12.2.0.1 · 19 · 21

Products and versions

1 product, 3 version entries
SourceVendorProductSchemeAffected versions
nvd oracle database generic 12.2.0.1 · 19c · 21c

Earlier manual review

A reviewer classified this CVE in an older dataset. We kept the labels and products below, but not the reviewer's reasoning.

## Manual Classification Context **Labels:** ORACLE NET, DBA **Products:** ORACLE DATABASE SERVER, RDBMS SECURITY

References

URLTags
https://www.oracle.com/security-alerts/cpuoct2021.html Patch, Vendor Advisory

Timeline
Published2021-10-20By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.