CVE-2026-46866
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 · uneditedVulnerability in the Oracle Enterprise Manager Base Platform product of Oracle Enterprise Manager (component: Agent Next Gen). Supported versions that are affected are 13.5 and 24.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Oracle Enterprise Manager Base Platform. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Enterprise Manager Base Platform as well as unauthorized update, insert or delete access to some of Oracle Enterprise Manager Base Platform accessible data. CVSS 3.1 Base Score 8.2 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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 confidenceOracle Enterprise Manager Base Platform has a vulnerability in the Agent Next Gen component that can be exploited by an unauthenticated remote attacker via HTTPS. The vulnerability allows attackers to cause a complete denial of service (high availability impact) as well as unauthorized low-integrity modifications (insert, update, delete) to accessible data. The attack requires no authentication and has low attack complexity.
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= 13.5.0.0= 24.1.0.0.0CVSS 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
- None
- Integrity
- Low
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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 checksWork through these to decide whether this CVE applies to you.
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Identify Oracle Enterprise Manager Base Platform versionLocate the Enterprise Manager installation directory and check the version file or use the Enterprise Manager command-line utilities to query the installed version. Common locations include the Oracle Middleware home directory or check via 'emctl status' command if available.Affected if The installed version is exactly 13.5.0.0 or exactly 24.1.0.0.0
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Confirm Agent Next Gen component is presentExamine the Enterprise Manager configuration to verify the Agent Next Gen component is installed and configured in the environment. This may be visible in the Enterprise Manager console under agent configuration or in the installation components list.Affected if The Agent Next Gen component is present in the installation regardless of configuration state
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Verify HTTPS management port exposureIdentify the management ports configured for Enterprise Manager (typically HTTPS ports in the 7000-9000 range) and determine if they are accessible from untrusted networks. Check firewall rules, load balancer configurations, and network ACLs governing these ports.Affected if The HTTPS management ports are exposed to unauthenticated network access from outside the trusted network perimeter
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Check for unauthorized data modification indicatorsReview Enterprise Manager audit logs and database tables for unexpected INSERT, UPDATE, or DELETE operations on the Agent Next Gen component data, particularly from unauthenticated sources or unusual IP addresses.Affected if Audit logs show unauthenticated or unexpected modification operations on Agent Next Gen data
The environment is affected if Oracle Enterprise Manager Base Platform version 13.5.0.0 or 24.1.0.0.0 is installed with the Agent Next Gen component and the management HTTPS ports are network-accessible to unauthenticated attackers.
Generated from the published advisory. Verify against your own configuration.
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 dataApply the Oracle security patch for CVE-2026-46866 from Oracle's Critical Patch Updates. If an immediate patch is unavailable, restrict network access to the Enterprise Manager management ports and implement additional authentication controls at the network perimeter.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-46866 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-46866 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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