Meeting ServerApplication · Cisco
CVE-2018-0263
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 · uneditedA vulnerability in Cisco Meeting Server (CMS) could allow an unauthenticated, adjacent attacker to access services running on internal device interfaces of an affected system. The vulnerability is due to incorrect default configuration of the device, which can expose internal interfaces and ports on the external interface of the system. A successful exploit could allow the attacker to gain unauthenticated access to configuration and database files and sensitive meeting information on an affected system. This vulnerability affects Cisco Meeting Server (CMS) 2000 Platforms that are running a CMS Software release prior to Release 2.2.13 or Release 2.3.4. Cisco Bug IDs: CSCvg76471.
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 confidenceA default configuration flaw in Cisco Meeting Server 2000 exposes internal device interfaces and ports on the external network interface. An unauthenticated attacker on the adjacent network can access the system and retrieve configuration files, database contents, and sensitive meeting information without any credentials.
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
Meeting ServerApplication
< 2.2.13< 2.3.4CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
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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Check the installed Cisco Meeting Server versionAccess the admin UI or use the command line to retrieve the version number. In the web interface, go to Configuration > System > About. From CLI, run 'version' or 'show version'.Affected if The version is below 2.2.13 or below 2.3.4 (for example, 2.2.0 through 2.2.12, or 2.3.0 through 2.3.3)
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Verify network interface binding configurationFrom the admin web interface, navigate to Configuration > Network > Interfaces. Check which IP addresses and ports are bound to each network interface. From CLI, examine the network configuration files or run 'show network' to see interface assignments.Affected if Internal-only interfaces (such as those intended for backend database, call bridge, or management traffic) are bound to or accessible via the external-facing network interface
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Confirm external accessibility of management portsFrom a system outside the internal network, attempt to reach the management web UI (port 443) and API (port 443) using the external IP address. Alternatively, review firewall rules and interface listening addresses in the network configuration.Affected if Management interface, configuration files, or database ports are accessible from an unauthenticated external or adjacent network request
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Inspect default network services and listenersFrom CLI, run commands such as 'show listening services' or 'netstat' to list all services listening on each interface. Check if services like the database, configuration API, or file transfers are bound to the external interface by default.Affected if Internal services (database, config retrieval, meeting data) are listening on the external interface IP address
You are affected if your Cisco Meeting Server version is below 2.2.13 or below 2.3.4 AND internal interfaces or services are bound to or accessible through the external network interface, allowing unauthenticated external access to sensitive configuration and meeting data.
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 data2.2.132.3.4
Update Cisco Meeting Server to Release 2.2.13, Release 2.3.4, or later. Alternatively, review and reconfigure the network settings to ensure internal interfaces are not exposed on the external interface.
Fix this in Meeting Server
Scoped from the published advisory
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,464.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-0263 — 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-2018-0263 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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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.
- 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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