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).
CVE-2021-2351
CVSS base score
8.3 (v3.1)
Severity
HIGH
Attack vector
Network
Weakness
CWE-327, CWE-384
Last modified
November 2, 2026
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected products
oracle advanced networking option
oracle agile engineering data management
oracle agile product lifecycle management
oracle agile product lifecycle management for process
oracle airlines data model
oracle application performance management
oracle application testing suite
oracle argus analytics
oracle argus insight
oracle argus mart
References
- packetstormsecurity.com Exploit, Third Party Advisory, VDB Entry
- packetstormsecurity.com Exploit, Third Party Advisory, VDB Entry
- seclists.org Exploit, Mailing List, Third Party Advisory
- seclists.org Exploit, Mailing List, Third Party Advisory
- www.oracle.com Patch, Vendor Advisory
- www.oracle.com Patch, Vendor Advisory
- www.oracle.com Vendor Advisory
- www.oracle.com Patch, Vendor Advisory
- www.oracle.com Vendor Advisory
- www.oracle.com Patch, Vendor Advisory