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Enterprise Manager Base PlatformApplication · Oracle

CVE-2026-46857

CRITICAL · 9.8 CVSS v3.1 Published 2026-06-17
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Vulnerability in the Oracle Enterprise Manager Base Platform product of Oracle Enterprise Manager (component: Oracle Management Service). Supported versions that are affected are 13.5 and 24.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Enterprise Manager Base Platform. Successful attacks of this vulnerability can result in takeover of Oracle Enterprise Manager Base Platform. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Unauthenticated remote code execution vulnerability in Oracle Enterprise Manager Base Platform (Oracle Management Service component) affecting versions 13.5 and 24.1. Easily exploitable via HTTP network attack allowing complete system takeover with maximum confidentiality, integrity, and availability impact.

MitigationApply Oracle's latest security patches for Enterprise Manager versions 13.5 and 24.1 immediately. If patches unavailable, restrict network access to Oracle Management Service interfaces and implement additional firewall controls.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Enterprise Manager Base PlatformApplication
Affected:= 13.5.0.0= 24.1.0.0.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Oracle Enterprise Manager installation
    Look for Oracle Enterprise Manager Base Platform installation directories (commonly under $ORACLE_HOME/em or C:\oracle\em) or check for 'Oracle Management Service' running as a Windows service or Unix daemon
    Affected if Oracle Enterprise Manager Base Platform is not installed on the system
  2. Determine installed version
    Check the version file in the installation directory, typically found in $ORACLE_HOME/em/EMInstl/ver.txt or use 'emctl status agent' command from the Oracle bin directory to retrieve version information
    Affected if The installed version matches exactly 13.5.0.0 or 24.1.0.0.0
  3. Verify Oracle Management Service HTTP endpoint is accessible
    Check if the OMS HTTP port is listening (default ports include 7801, 7802, 7803, 4889, 8080, 8443) using 'netstat -an | grep -E "(7801|7802|7803|4889|8080|8443)"' or by reviewing firewall rules and listener configurations
    Affected if The Oracle Management Service HTTP interface is listening and accepting network connections
  4. Confirm lack of authentication requirement
    Attempt to access the HTTP endpoint (e.g., http://hostname:port/em) and verify whether the interface allows access without presenting login credentials or redirecting to an authentication portal
    Affected if The HTTP interface returns application content without requiring any authentication credentials

The system is affected if Oracle Enterprise Manager Base Platform versions 13.5.0.0 or 24.1.0.0.0 are installed and the Oracle Management Service HTTP interface is network-accessible without requiring authentication.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply Oracle's latest security patches for Enterprise Manager versions 13.5 and 24.1 immediately. If patches unavailable, restrict network access to Oracle Management Service interfaces and implement additional firewall controls.

Fix this in Enterprise Manager Base Platform Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing12.0 h
  • Review / QA6.0 h
42.0 hours of engineering $7,360
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-46857 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data