CVE-2021-2018
CVE-2021-2018 is a high-severity vulnerability in Oracle Advanced Networking Option with a CVSS 3.x base score of 8.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 8.3)
- CVSS v2: 5.1
- EPSS exploit prediction: 1% (70th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Oracle Advanced Networking Option
- Published:
- Last modified:
Description
Vulnerability in the Advanced Networking Option component of Oracle Database Server. Supported versions that are affected are 18c 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: CVE-2021-2018 affects Windows platform only. 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).
Frequently asked questions
- What is CVE-2021-2018?
- Vulnerability in the Advanced Networking Option component of Oracle Database Server. Supported versions that are affected are 18c 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: CVE-2021-2018 affects Windows platform only. 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).
- How severe is CVE-2021-2018?
- CVE-2021-2018 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-2018 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-2018?
- CVE-2021-2018 primarily affects Oracle Advanced Networking Option. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-2018?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-2018 published?
- CVE-2021-2018 was published on 2021-01-20 and last updated on 2026-06-17.
References
Affected products (10)
- cpe:2.3:a:oracle:advanced_networking_option:18c:*:*:*:*:*:*:.
- cpe:2.3:a:oracle:advanced_networking_option:19c:*:*:*:*:*:*:.
- cpe:2.3:a:oracle:adaptive_access_manager:11.1.2.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:data_integrator:11.1.1.9.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:data_integrator:12.2.1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:data_integrator:12.2.1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:enterprise_manager_for_fusion_applications:13.3.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:hospitality_simphony:18.2.7.2:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:hospitality_simphony:19.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:weblogic_server:12.2.1.3.0:*:*:*:*:*:*:*
More vulnerabilities in Oracle Advanced Networking Option
- CVE-2021-2351 — High (CVSS 8.3): Vulnerability in the Advanced Networking Option component of Oracle Database Server. Supported versions that are…