Is there a public exploit for CVE-2021-2351?

No public exploit for CVE-2021-2351 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2021-2351?

CVE-2021-2351 scores CVSS 8.3 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 2.43%.

What does CVE-2021-2351 affect?

CVE-2021-2351 affects Oracle Corporation WebLogic Server.

8.3 High

Vulnerability in the Advanced Networking Option component of Oracle Database Server.

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).

Assessment

CVSS: 8.3 (v3.1)
Severity: High
EPSS: 2.43% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 20 July 2021
Last updated: 2 November 2026
Affected: Oracle Corporation · WebLogic Server
Assigner: oracle

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

At the source

EUVD (ENISA)

References

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