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

Apache, Oracle · Struts, Business Intelligence, Communications Diameter Intelligence Hub +5 more

CVE-2020-17530

Apache Struts Remote Code Execution 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
EPSS95.6%
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 95.6%; technical severity is CVSS 9.8.

Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution. Affected software : Apache Struts 2.0.0 - Struts 2.5.25.

Who should care

  • Teams operating Struts, Business Intelligence, Communications Diameter Intelligence Hub +5 more
  • Vulnerability and exposure management teams
  • Security operations teams monitoring exploitation activity

Response plan

What I would do

  1. Confirm whether Struts, Business Intelligence, Communications Diameter Intelligence Hub +5 more 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-917
Affected versions
Apache Struts (Start Including: 2.0.0, End Excluding: 2.5.30); Oracle Business Intelligence (Version: 12.2.1.4.0); Oracle Communications Diameter Intelligence Hub (Version: 8.2.3); Oracle Communications Policy Management (Version: 12.5.0); Oracle Communications Pricing Design Center (Version: 12.0.0.3.0); Oracle Financial Services Data Integration Hub (Version: 8.0.6); Oracle Hospitality Opera 5 (Version: 5.6); Oracle Mysql Enterprise Monitor (Version: 8.0.23)
Published
11 December 2020
Attack vector
Network
Privileges required
None
User interaction
None

Signal timeline

  1. CVE published
  2. Added to CISA KEV
  3. Latest EPSS score: 95.6%
  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.