CVE-2021-2018

mediumpriority · track · 21EPSS 0.015 · 73 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.46% (73rd) EPSS

CVSS 5.1 · medium

Is it mine?

14 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

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).

cvss

Technical severity, 0–10. One row per scoring source.

8.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.1–8.3

v2.05.1mediumAV:N/AC:H/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 4.9 · impact 6.4

v3.18.3highAV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.3highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.3highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:Hsecondary · secalert_us@oracle.com USexploitability 1.6 · impact 6

v3.17.6highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20US

affected products (14)

Products and version ranges known to be affected.

Oracle Corporation Advanced Networking Option≤ 19cenisa_euvdEU
Oracle Corporation Advanced Networking Option≤ 18cenisa_euvdEU
Oracle Corp. Database Server≤ 19cfstec_bduRU
Oracle Corp. Database Server≤ 18cfstec_bduRU
oracle adaptive access manager= 11.1.2.3.0nvdUScpe:2.3:a:oracle:adaptive_access_manager:*:*:*:*:*:*:*:*
oracle advanced networking option= 18cnvdUScpe:2.3:a:oracle:advanced_networking_option:*:*:*:*:*:*:*:*
oracle advanced networking option= 19cnvdUScpe:2.3:a:oracle:advanced_networking_option:*:*:*:*:*:*:*:*
oracle data integrator= 11.1.1.9.0nvdUScpe:2.3:a:oracle:data_integrator:*:*:*:*:*:*:*:*
oracle data integrator= 12.2.1.3.0nvdUScpe:2.3:a:oracle:data_integrator:*:*:*:*:*:*:*:*
oracle data integrator= 12.2.1.4.0nvdUScpe:2.3:a:oracle:data_integrator:*:*:*:*:*:*:*:*
oracle enterprise manager for fusion applications= 13.3.0.0nvdUScpe:2.3:a:oracle:enterprise_manager_for_fusion_applications:*:*:*:*:*:*:*:*
oracle hospitality simphony= 18.2.7.2nvdUScpe:2.3:a:oracle:hospitality_simphony:*:*:*:*:*:*:*:*
oracle hospitality simphony= 19.1.3nvdUScpe:2.3:a:oracle:hospitality_simphony:*:*:*:*:*:*:*:*
oracle weblogic server= 12.2.1.3.0nvdUScpe:2.3:a:oracle:weblogic_server:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2021-01-20modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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