CASCACascade Atlas

Evidence dossier

CVE-2020-2883

CVE-2020-2883

78.2–99.0Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP, T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

State
PUBLISHED
Published
Apr 15, 2020
Updated
Jan 12, 2026
Evidence coverage
72%
CISA KEVCatalog member

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

FIRST EPSS94.93%

2026-07-18 · v2026.06.15 · percentile 99.9%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
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CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

oracleoriginal assertion
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Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP, T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CISA KEVoriginal assertion
observed_exploitation

Oracle WebLogic Server Unspecified Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.949280000000; percentile 0.998520000000

Applicability

Cited product scope

Trace impact →
Oracle CorporationWebLogic Server
[{"status": "affected", "version": "10.3.6.0.0"}, {"status": "affected", "version": "12.1.3.0.0"}, {"status": "affected", "version": "12.2.1.3.0"}, {"status": "affected", "version": "12.2.1.4.0"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:oracle:weblogic_server:10.3.6.0.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:oracle:weblogic_server:12.1.3.0.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:oracle:weblogic_server:12.2.1.3.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:oracle:weblogic_server:12.2.1.4.0:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

9.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5
nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8
secalert_us@oracle.comCVSS 3.0 · role SecondaryCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
oracleCVSS 3.0 · role unknownCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.