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8.3High

Oracle Advanced Networking Option

CVE-2021-2351

Vulnerability in the Advanced Networking Option component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1 and 19c. Difficult to exploit vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise Advanced Networking Option. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Advanced Networking Option, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Advanced Networking Option. Note: The July 2021 Critical Patch Update introduces a number of Native Network Encryption changes to deal with vulnerability CVE-2021-2351 and prevent the use of weaker ciphers. Customers should review: "Changes in Native Network Encryption with the July 2021 Critical Patch Update" (Doc ID 2791571.1). CVSS 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H).

What this means for your business

  • It affects Oracle Advanced Networking Option. It matters if your company, or a supplier that handles your data, runs it.
  • Code showing how to exploit it has been published, but real attacks have not been confirmed.
  • An attacker can use it remotely, over a network, without a login, but only after tricking someone into an action such as opening a file or a link.
  • FIRST's prediction model gives it a 2% chance of attack attempts being seen in the next 30 days, ranking above 83% of all known flaws.

What to do

  1. 1Check whether your company or your suppliers run Oracle Advanced Networking Option, and which version. The affected versions are listed further down this page.
  2. 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

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Scoring

CVSS
8.3 (v3.1)
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness
CWE-327
Assigned by
secalert_us@oracle.com

Dates

Published
2021-07-21
Last modified
2026-08-25
Sources
NVD

Affected products

  • Oracle Advanced Networking Option12.1.0.2, 12.2.0.1, 19c
  • Oracle Agile Engineering Data Management6.2.1.0
  • Oracle Agile Product Lifecycle Management9.3.6
  • Oracle Agile Product Lifecycle Management For Process6.2.2.0, 6.2.3.0
  • Oracle Airlines Data Model12.1.1.0.0, 12.2.0.1.0
  • Oracle Application Performance Management13.4.1.0, 13.5.1.0
  • Oracle Application Testing Suite13.3.0.1
  • Oracle Argus Analytics8.2.1, 8.2.2, 8.2.3
  • Oracle Argus Insight8.2.1, 8.2.2, 8.2.3
  • Oracle Argus Mart8.2.1, 8.2.2, 8.2.3
  • Oracle Argus Safety8.2.1, 8.2.2, 8.2.3
  • Oracle Banking Apis18.1 - 18.3, 19.1, 19.2, 20.1, 21.1

As listed in the NVD configuration data. Not a statement about your estate.

References