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Weekly Signal
Live intelligence Updated 19 Aug 2026 · 20:27 UTC

Oracle · Storagetek Tape Analytics Sw Tool, Virtual Desktop Infrastructure, WebLogic Server

CVE-2015-4852

Oracle WebLogic Server Deserialization of Untrusted Data Vulnerability

Recommended action

Validate affected assets and exposure now, then remediate on an accelerated schedule. Apply updates per vendor instructions.

View response plan
CVSS9.8
EPSS96.0%
KEVYes
ExploitationConfirmed exploitation
PatchPatch or guidance available ↓

Assessment

Why it matters

CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 96.0%; technical severity is CVSS 9.8.

The WLS Security component in Oracle WebLogic Server 10.3.6.0, 12.1.2.0, 12.1.3.0, and 12.2.1.0 allows remote attackers to execute arbitrary commands via a crafted serialized Java object in T3 protocol traffic to TCP port 7001, related to oracle_common/modules/com.bea.core.apache.commons.collections.jar. NOTE: the scope of this CVE is limited to the WebLogic Server product.

Who should care

  • Teams operating Storagetek Tape Analytics Sw Tool, Virtual Desktop Infrastructure, WebLogic Server
  • Vulnerability and exposure management teams
  • Security operations teams monitoring exploitation activity

Response plan

What I would do

  1. Confirm whether Storagetek Tape Analytics Sw Tool, Virtual Desktop Infrastructure, WebLogic Server is present in the environment.
  2. Identify affected versions and establish whether vulnerable services are exposed or reachable.
  3. Apply updates per vendor instructions.
  4. Review relevant security telemetry for evidence of attempted or successful exploitation.
  5. Document the remediation decision and track it to verified completion.

Vendor remediation

Patch and remediation links

Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.

Technical details

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-502
Affected versions
Oracle Storagetek Tape Analytics Sw Tool (Version: 2.3); Oracle Virtual Desktop Infrastructure (End Including: 3.5.2); Oracle WebLogic Server (Version: 12.2.1.0.0)
Published
18 November 2015
Attack vector
Network
Privileges required
None
User interaction
None

Signal timeline

  1. CVE published
  2. Added to CISA KEV
  3. Latest EPSS score: 96.0%
  4. Signal calculated at 84

External references

Live public intelligence This assessment combines public-source evidence. Validate the affected product, version and exposure against your own environment before making a risk decision.