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

Apache, Canonical, Debian +5 more · Cassandra, Ubuntu Linux, Debian Linux +36 more

CVE-2016-3427

Oracle Java SE and JRockit Unspecified 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
EPSS92.3%
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 92.3%; technical severity is CVSS 9.8.

Unspecified vulnerability in Oracle Java SE 6u113, 7u99, and 8u77; Java SE Embedded 8u77; and JRockit R28.3.9 allows remote attackers to affect confidentiality, integrity, and availability via vectors related to JMX.

Who should care

  • Teams operating Cassandra, Ubuntu Linux, Debian Linux +36 more
  • Vulnerability and exposure management teams
  • Security operations teams monitoring exploitation activity

Response plan

What I would do

  1. Confirm whether Cassandra, Ubuntu Linux, Debian Linux +36 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-284
Affected versions
Apache Cassandra (Version: 4.0.0); Canonical Ubuntu Linux (Version: 16.04); Debian Debian Linux (Version: 8.0); Netapp E-series Santricity Management Plug-ins (Version: -); Netapp E-series Santricity Storage Manager (Version: -); Netapp E-series Santricity Web Services (Version: -); Netapp Oncommand Balance (Version: -); Netapp Oncommand Cloud Manager (Version: -)
Published
21 April 2016
Attack vector
Network
Privileges required
None
User interaction
None

Signal timeline

  1. CVE published
  2. Added to CISA KEV
  3. Latest EPSS score: 92.3%
  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.