DaystoPatch

OracleExploited incident

Oracle WebLogic Server T3/IIOP remote code execution (April 2020 CPU)

CVE-2020-2883Critical, CVSS 9.8In CISA's Known Exploited Vulnerabilities catalog since 7 Jan 2025

  • Exploited after a fix existed
FixedFixed for every supported version on the day it became public.

Response

Silence
same day
First public report to first vendor statement
Exposure
same day
First public report to first fix
Follow-through
same day
First public report to a fix for every supported version
  • Vendor silent
  • Vendor statement, no fix
  • Fixed for some versions
  • Fixed when disclosed
  • Date only, no time of day

Timeline and evidence

Open a moment to see its source and archived quote.

  1. First public report

    date only

    Oracle Critical Patch Update Advisory - April 2020 (Wayback snapshot)CuratedQuote verified

    2020-April-14 Rev 1. Initial Release.

    Coordinated disclosure (several reporters credited in the CPU, including via Trend Micro ZDI); first public information was the CPU.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:7eaef98c2c65ed79…
    Used in metrics
    Yes
    Dispute this timestamp
    3 more sources for this moment
    CVE.org record CVE-2020-2883ClaimedQuote verified15 Apr 2020, 13:29 UTC

    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

    CVE record published.

    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:2bf3aef9f00b0957…
    Used in metrics
    No, kept for the record
    Dispute this timestamp
    CISA KEV (CVE-2020-2883)ClaimedQuote verified7 Jan 2025

    Oracle WebLogic Server Unspecified Vulnerability

    Added to CISA's KEV catalog on 2025-01-07.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Claimed. The date the source gives.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:ef8fffede5c47200…
    Used in metrics
    No, kept for the record
    Dispute this timestamp
    Bluesky postClaimedQuote not checked yet7 Jan 2025, 19:04 UTC

    Urgent: CISA mandates patching for critical vulnerabilities in Oracle WebLogic (CVE-2020-2883) & Mitel MiCollab (CVE-2024-41713, CVE-2024-55550) by January 28th (federal agencies). Risk: unauthorized access. Immediate mitigation urged for all.#PatchNowC

    Earliest third-party post we hold.

    Source
    Bluesky post social
    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Not checked yet
    Snapshot
    No archived snapshot
    Used in metrics
    No, kept for the record
    Dispute this timestamp

  2. Vendor statement

    date onlysame day

    Oracle Critical Patch Update Advisory - April 2020 (Wayback snapshot)CuratedQuote verified

    2020-April-14 Rev 1. Initial Release.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:7eaef98c2c65ed79…
    Used in metrics
    Yes
    Dispute this timestamp

  3. First workaround

    No official mitigation found yet.

  4. First fix

    date onlysame day

    Oracle Critical Patch Update Advisory - April 2020 (Wayback snapshot)CuratedQuote verified

    Oracle WebLogic Server, versions 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0

    Affected-products table of the April 2020 CPU (Rev 1 2020-04-14); risk-matrix row: CVE-2020-2883, Oracle WebLogic Server, Core, IIOP, T3, CVSS 9.8.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:7eaef98c2c65ed79…
    Used in metrics
    Yes
    Dispute this timestamp

  5. Fixed for all versions

    date onlysame day

    Oracle Critical Patch Update Advisory - April 2020 (Wayback snapshot)CuratedQuote verified

    2020-April-14 Rev 1. Initial Release.

    All four supported affected versions are covered by the one CPU.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:7eaef98c2c65ed79…
    Used in metrics
    Yes
    Dispute this timestamp

Send this to your boss

No brief for this incident yet. We write one for every open incident and every critical bug exploited before a fix.

Affected products

  • Oracle WebLogic Server 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0
How we built this timeline

Patched in the April 2020 CPU (14 Apr 2020). CISA added it to KEV on 7 Jan 2025, almost five years later.

No public report of exploitation before the patch was found. CVSS 9.8 from Oracle's risk matrix.

Wayback snapshot cited because oracle.com blocks non-browser user agents.

Related

No related incidents.

Oracle report card