CVE-2022-21420
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 Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 to compromise Oracle Coherence. Successful attacks of this vulnerability can result in takeover of Oracle Coherence. 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 confidenceUnauthenticated remote code execution vulnerability in Oracle Coherence Core component, exploitable via the T3 network protocol. Allows attackers with network access to completely compromise affected Coherence installations, achieving full takeover of confidentiality, integrity, and availability.
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= 12.2.1.3.0= 12.2.1.4.0= 14.1.1.0.0CVSS 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
- 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 checksWork through these to decide whether this CVE applies to you.
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Identify Oracle Coherence installationLocate Coherence installation directories or check for coherence.jar files in the system. Common paths include Oracle WebLogic installations or standalone Coherence deployments.Affected if Coherence software is present on the system
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Determine Coherence versionCheck the version of the installed Coherence software. Version information is typically found in the coherence.jar manifest, installation logs, or via the coherence version command if available.Affected if The installed version matches exactly 12.2.1.3.0, 12.2.1.4.0, or 14.1.1.0.0
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Verify T3 protocol is enabledExamine Coherence configuration files (such as tangosol-coherence.xml or MBean configurations) to determine if the T3 protocol is explicitly enabled or available for network communication.Affected if T3 protocol is enabled and listening for network connections
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Check network exposure of T3 portsIdentify open network ports associated with Coherence T3 communication (commonly port 9998 or configurable ranges) and determine if they are exposed to untrusted networks or accessible from external IP addresses.Affected if T3 ports are reachable from untrusted network segments or the internet
A system is affected if it runs Oracle Coherence versions 12.2.1.3.0, 12.2.1.4.0, or 14.1.1.0.0 with the T3 protocol enabled and accessible over the network.
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 Oracle Critical Patch Update (CPU) patches for CVE-2022-21420 to affected versions (12.2.1.3.0, 12.2.1.4.0, 14.1.1.0.0). If immediate patching is not possible, restrict network access to T3/IIOP ports or disable these protocols at the network perimeter.
- Consultation4.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-21420 — 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-2022-21420 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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- 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
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