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CVE-2021-2351

high

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

Vendor / product: Oracle — advanced networking option

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).

CVSS
8.3
8.3 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Severity source: NVD CVSS v3.1 (secalert_us@oracle.com)
Timeline (UTC)
Published: 2021-07-21 15:15
Modified: 2026-11-02 18:18
NVD status: Modified
Last synced 1 day ago
Verified against the source API 2026-11-03 07:33 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

oracle / advanced_networking_option 12.1.0.2, 12.2.0.1, 19c
oracle / agile_engineering_data_management 6.2.1.0
oracle / agile_product_lifecycle_management 9.3.6
oracle / agile_product_lifecycle_management_for_process 6.2.2.0, 6.2.3.0
oracle / airlines_data_model 12.1.1.0.0, 12.2.0.1.0
oracle / application_performance_management 13.4.1.0, 13.5.1.0
oracle / application_testing_suite 13.3.0.1
oracle / argus_analytics 8.2.1, 8.2.2, 8.2.3
oracle / argus_insight 8.2.1, 8.2.2, 8.2.3
oracle / argus_mart 8.2.1, 8.2.2, 8.2.3
oracle / argus_safety 8.2.1, 8.2.2, 8.2.3
oracle / banking_apis ≥18.1 ≤18.3, 19.1, 19.2, 20.1, 21.1
oracle / banking_digital_experience ≥18.1 ≤18.3, 17.2, 19.1, 19.2, 20.1, 21.1
oracle / banking_enterprise_default_management 2.10.0, 2.12.0
oracle / banking_platform 2.6.2, 2.7.1, 2.12.0
oracle / big_data_spatial_and_graph <23.1
oracle / blockchain_platform 21.1.2
oracle / clinical 5.2.1, 5.2.2
oracle / commerce_platform 11.3.0, 11.3.1, 11.3.2
oracle / communications_application_session_controller 3.9.0
oracle / communications_billing_and_revenue_management 12.0.0.4, 12.0.0.5
oracle / communications_calendar_server 8.0.0.5.0
oracle / communications_contacts_server 8.0.0.3.0
oracle / communications_convergent_charging_controller ≥12.0.1.0.0 ≤12.0.4.0.0, 6.0.1.0.0
oracle / communications_data_model 11.3.2.1.0, 11.3.2.2.0, 11.3.2.3.0, 12.1.0.1.0, 12.1.2.0.0
oracle / communications_design_studio 7.3.5, 7.4.0, 7.4.1, 7.4.2
oracle / communications_diameter_intelligence_hub ≥8.0.0 ≤8.2.3
oracle / communications_ip_service_activator 7.4.0
oracle / communications_metasolv_solution 6.3.1
oracle / communications_network_charging_and_control ≥12.0.1.0 ≤12.0.4.0.0, 6.0.1.0.0
oracle / communications_network_integrity 7.3.5, 7.3.6
oracle / communications_pricing_design_center 12.0.0.4, 12.0.0.5
oracle / communications_services_gatekeeper 7.0
oracle / communications_session_report_manager ≥8.0.0 ≤8.2.5.0
oracle / communications_session_route_manager ≥8.2.0 ≤8.2.5
oracle / data_integrator 12.2.1.3.0, 12.2.1.4.0
oracle / demantra_demand_management ≥12.2.6 ≤12.2.11
oracle / documaker ≥12.6.2 ≤12.6.4, 12.6.0, 12.7.0
oracle / enterprise_data_quality 12.2.1.3.0, 12.2.1.4.0
oracle / enterprise_manager_base_platform 13.4.0.0, 13.5.0.0
oracle / enterprise_manager_ops_center 12.4.0.0
oracle / financial_services_analytical_applications_infrastructure ≥8.0.7 ≤8.1.1
oracle / financial_services_behavior_detection_platform 8.0.7, 8.0.8, 8.0.11
oracle / financial_services_enterprise_case_management 8.0.7, 8.0.8, 8.0.11
oracle / financial_services_foreign_account_tax_compliance_act_management 8.0.7, 8.0.8, 8.0.11
oracle / financial_services_model_management_and_governance ≥8.0.8.0.0 ≤8.1.1.0.0
oracle / financial_services_trade-based_anti_money_laundering 8.0.7, 8.0.8
oracle / flexcube_investor_servicing 12.0.4, 12.1.0, 12.3.0, 12.4.0, 14.4.0, 14.5.0
oracle / flexcube_private_banking 12.0.0, 12.1.0
oracle / fusion_middleware 12.2.1.3.0, 12.2.1.4.0

Weakness classification (CWE)

CWE-327 CWE-384

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://www.oracle.com/security-alerts/cpuapr2022.html
Vendor advisory: https://www.oracle.com/security-alerts/cpujan2022.html
Vendor advisory: https://www.oracle.com/security-alerts/cpujan2023.html
Vendor advisory: https://www.oracle.com/security-alerts/cpujul2021.html
Vendor advisory: https://www.oracle.com/security-alerts/cpujul2022.html
Vendor advisory: https://www.oracle.com/security-alerts/cpuoct2021.html
Vendor advisory: https://www.oracle.com/security-alerts/cpuapr2022.html
Vendor advisory: https://www.oracle.com/security-alerts/cpujan2022.html
Vendor advisory: https://www.oracle.com/security-alerts/cpujan2023.html
Vendor advisory: https://www.oracle.com/security-alerts/cpujul2021.html
Patch / mitigation: https://www.oracle.com/security-alerts/cpuapr2022.html
Patch / mitigation: https://www.oracle.com/security-alerts/cpujan2022.html
Patch / mitigation: https://www.oracle.com/security-alerts/cpujul2021.html
Patch / mitigation: https://www.oracle.com/security-alerts/cpuoct2021.html
Patch / mitigation: https://www.oracle.com/security-alerts/cpuapr2022.html
Patch / mitigation: https://www.oracle.com/security-alerts/cpujan2022.html
Patch / mitigation: https://www.oracle.com/security-alerts/cpujul2021.html
Patch / mitigation: https://www.oracle.com/security-alerts/cpuoct2021.html

References

Data sources

NVD CVE API 2.0 — fetched 2026-11-03 07:33 UTC · record ↗

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