CVE Intelligence
CISA KEV Critical Access control

CVE-2016-3427 — Oracle Java SE and JRockit Unspecified Vulnerability

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.

Published Apr 21, 2016 · Updated Oct 13, 2026 · Sources: CISA Known Exploited Vulnerabilities, NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: oracle

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

CISA KEV · May 12, 2023
How the score was calculated
  • Confirmed exploitation (CISA KEV)+35
  • EPSS 92.3% (30-day exploitation probability)+15
  • Technical severity (critical)+10
  • Automatable exploitation (SSVC)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Confirmed
CISA KEV, listed May 12, 2023
EPSS FIRST
92.33%
ahead of 100% of scored CVEs · Oct 14, 2026
Affects
Apache Software Foundation
Cassandra and 37 more
CVSS base
9.8
Critical · 4 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation
Active
none · proof-of-concept · active
Automatable
Yes
can an attacker script the kill-chain steps
Technical impact
Total
partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

CISA required action CISA

Apply updates per vendor instructions.

US federal deadline: Jun 2, 2023 — passed 1231 day(s) ago

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (Apache Software Foundation Cassandra, Canonical Ubuntu Linux, Debian Debian Linux…).
  2. Treat as emergency remediation: the CVE is in CISA KEV (confirmed exploitation).
  3. The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
  4. Apply the fixed version or the patch documented under Remediation.
  5. EPSS ahead of 100% of scored CVEs: prioritize it in the patch queue.
  6. Search available logs for exploit probes matching the vulnerability class (access control), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Apache Software Foundation Cassandra version 4.0.0-beta1≥ 3.11.0 and < 3.11.8≥ 3.0.0 and < 3.0.22≥ 2.2.0 and < 2.2.18≥ 2.1.0 and < 2.1.22 Vulnerable NIST National Vulnerability Database
Canonical Ubuntu Linux version 12.04version 14.04version 15.10version 16.04 Vulnerable NIST National Vulnerability Database
Debian Debian Linux version 8.0 Vulnerable NIST National Vulnerability Database
Netapp E-series Santricity Management Plug-ins versions not specified by the source Vulnerable NIST National Vulnerability Database
Netapp E-series Santricity Storage Manager versions not specified by the source Vulnerable NIST National Vulnerability Database
Netapp E-series Santricity Web Services versions not specified by the source Vulnerable NIST National Vulnerability Database
Netapp Oncommand Balance versions not specified by the source Vulnerable NIST National Vulnerability Database
Netapp Oncommand Cloud Manager versions not specified by the source Vulnerable NIST National Vulnerability Database
Netapp Oncommand Insight versions not specified by the source Vulnerable NIST National Vulnerability Database
Netapp Oncommand Performance Manager versions not specified by the source Vulnerable NIST National Vulnerability Database
Netapp Oncommand Report versions not specified by the source Vulnerable NIST National Vulnerability Database
Netapp Oncommand Shift versions not specified by the source Vulnerable NIST National Vulnerability Database
Netapp Oncommand Unified Manager versions not specified by the source Vulnerable NIST National Vulnerability Database
Netapp Oncommand Workflow Automation versions not specified by the source Vulnerable NIST National Vulnerability Database
Netapp Storagegrid ≤ 9.0.4 Vulnerable NIST National Vulnerability Database
Netapp Vasa Provider For Clustered Data Ontap ≥ 7.2 Vulnerable NIST National Vulnerability Database
Netapp Virtual Storage Console ≥ 7.2 Vulnerable NIST National Vulnerability Database
Opensuse Leap version 42.1 Vulnerable NIST National Vulnerability Database
Opensuse Opensuse version 13.2version 13.1 Vulnerable NIST National Vulnerability Database
Oracle Jdk version 1.8.0-update77version 1.7.0-update99version 1.6.0-update113 Vulnerable NIST National Vulnerability Database
Oracle Jre version 1.8.0-update77version 1.7.0-update99version 1.6.0-update113 Vulnerable NIST National Vulnerability Database
Oracle Jrockit version r28.3.9 Vulnerable NIST National Vulnerability Database
Oracle Linux version 7version 6version 5 Vulnerable NIST National Vulnerability Database
Red Hat Enterprise Linux Desktop version 5.0version 6.0version 7.0 Vulnerable NIST National Vulnerability Database
Red Hat Enterprise Linux Eus version 7.2version 6.7version 7.3version 7.4version 7.5version 7.6version 7.7 Vulnerable NIST National Vulnerability Database
Red Hat Enterprise Linux Server version 6.0version 5.0version 7.0 Vulnerable NIST National Vulnerability Database
Red Hat Enterprise Linux Server Aus version 7.7version 7.6version 7.4version 7.3version 7.2 Vulnerable NIST National Vulnerability Database
Red Hat Enterprise Linux Server Eus version 6.7version 7.2 Vulnerable NIST National Vulnerability Database
Red Hat Enterprise Linux Server Tus version 7.7version 7.6version 7.3version 7.2 Vulnerable NIST National Vulnerability Database
Red Hat Enterprise Linux Workstation version 6.0version 7.0version 5.0 Vulnerable NIST National Vulnerability Database
Red Hat Satellite version 5.7version 5.6 Vulnerable NIST National Vulnerability Database
SUSE Linux Enterprise Desktop version 12-sp1version 12 Vulnerable NIST National Vulnerability Database
SUSE Linux Enterprise Module For Legacy version 12 Vulnerable NIST National Vulnerability Database
SUSE Linux Enterprise Server version 12-sp1version 12version 11-sp4version 11-sp3version 11-sp2version 10-sp4 Vulnerable NIST National Vulnerability Database
SUSE Linux Enterprise Software Development Kit version 12-sp1version 11-sp4 Vulnerable NIST National Vulnerability Database
SUSE Manager version 2.1 Vulnerable NIST National Vulnerability Database
SUSE Manager Proxy version 2.1 Vulnerable NIST National Vulnerability Database
SUSE Openstack Cloud version 5 Vulnerable NIST National Vulnerability Database

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
9.8 CVSS 3.1 Critical 3.9 5.9 nvd@nist.gov via NIST National Vulnerability Database
9.8 CVSS 3.1 Critical 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0 via NIST National Vulnerability Database
9.8 CVSS 3.1 Critical — — CISA-ADP via CVE Program (cve.org) e CISA ADP
9.0 CVSS 3.0 Critical — — GitHub, Inc. via GitHub Security Advisories
10.0 CVSS 2.0 High 10.0 10.0 nvd@nist.gov via NIST National Vulnerability Database
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (score shown at the top: nvd@nist.gov)
Sources assign different scores within the same severity band. For prioritization we use 9.8 (NVD (NIST)) as a conservative provisional reference — not a definitive official score.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-284 · Improper Access Control

Other CVEs with this weakness →

CISA KEV details CISA

CISA lists a CVE once it has evidence of exploitation against real targets.

Listed
May 12, 2023
Federal deadline
Jun 2, 2023
passed 1231 day(s) ago
Ransomware use
Unknown

CISA records ransomware use only for campaigns it has confirmed, so “Unknown” means unrecorded, not ruled out. The deadline binds US federal agencies; for everyone else it is a reference date.

EPSS over time FIRST

Oct 12, 2026 → Oct 14, 2026 · 3 reading(s) · max 92.33%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
  • Audit administrative actions and access to resources outside each user’s normal pattern.
  • Hunt retroactively in logs from before May 12, 2023 (KEV listing): exploitation may have started earlier.
web/proxy/WAF logsnetwork IDS/IPSauthentication logsapplication logs

Timeline

What happened to this CVE, newest first.

  • 2026
  • SSVC assessment updated
    Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
  • Record published
    Oct 13, 2026
  • Fix documented
    Oct 13, 2026 · NIST National Vulnerability Database
  • Affected products added · oracle/jdk, oracle/jre, oracle/jrockit, oracle/linux, canonical/ubuntu linux, debian/debian linux, netapp/e-series santr
    Oct 13, 2026 · NIST National Vulnerability Database
  • CVSS changed · 9.8
    Oct 13, 2026 · NIST National Vulnerability Database
  • Source status changed · → Analyzed
    Oct 13, 2026 · NIST National Vulnerability Database
  • Added to CISA KEV (detected)
    Oct 13, 2026 · CISA Known Exploited Vulnerabilities
  • Record created in this database
    Oct 13, 2026 · CISA Known Exploited Vulnerabilities
  • 2023
  • Added to CISA KEV catalog
    May 11, 2023 · CISA
  • 2016
  • CVE published
    Apr 21, 2016 · oracle

Source activity

Repeated readings are counted rather than listed.

  • 2× References added · Oct 13, 2026 – Oct 13, 2026
  • 1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

79 on the record

Elsewhere on this site

Apache Software Foundation
every CVE for this vendor
2023-05
what else CISA listed that month
Access control
same class
CWE-284
other pages naming this weakness

Related CVEs (same products)

  • CVE-2026-12544 Foreman: ssti and insecure deserialization in foreman-rake configuration 14d
  • CVE-2026-12540 Foreman: command injection in foreman-rake errors:fetch_log via request_id parameter 14d
  • CVE-2026-12541 Foreman: command injection in foreman-rake database tasks 14d
  • CVE-2026-12423 Foreman: unauthenticated information disclosure via provisioning token validation flaw 14d
  • CVE-2026-81658 Foreman: cross-tenant disclosure of template revisions via unauthorized audit lookup Aug 27, 2026
  • CVE-2026-42169 Gimp: gimp apng loader heap-buffer-overflow when fctl width exceeds ihdr width (file-png.c) Aug 4, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2016-3427 is "Oracle Java SE and JRockit Unspecified Vulnerability", rated Critical. It affects Cassandra (Apache Software Foundation); versions are in the scope table. It is in CISA KEV: there is evidence of real-world exploitation. CVSS 9.8 describes technical severity. EPSS 92.33% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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