Content Services Switch 11500 FirmwareOperating system · Cisco
CVE-2015-0667
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 · uneditedThe Management Interface on Cisco Content Services Switch (CSS) 11500 devices 8.20.4.02 and earlier allows remote attackers to bypass intended restrictions on local-network device access via crafted SSH packets, aka Bug ID CSCut14855.
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 confidenceThe Cisco Content Services Switch (CSS) 11500 management interface in versions 8.20.4.02 and earlier contains a vulnerability that allows remote attackers to bypass intended IP-based access restrictions via crafted SSH packets. The management interface is designed to only accept connections from local-network devices, but attackers can circumvent this restriction by manipulating SSH packets.
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
Content Services Switch 11500 FirmwareOperating system
<= 8.20.4.02CVSS 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
- Authentication
- None
- Confidentiality
- None
- Integrity
- Partial
- Availability
- None
AV:N/AC:L/Au:N/C:N/I:P/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.
-
Confirm the device model is Cisco CSS 11500Identify the hardware by checking the device label, console output, or management interface for 'CSS 11500' model identificationAffected if The device is not a Cisco Content Services Switch 11500
-
Check the installed firmware versionAccess the device console or management interface and retrieve the firmware version information. Compare it against 8.20.4.02 using standard version comparisonAffected if The firmware version is 8.20.4.02 or earlier
-
Verify SSH management interface is enabledCheck the device configuration for SSH protocol enablement on the management interface. This is typically visible in the running configuration or management service settingsAffected if SSH management access is enabled on the device
-
Assess network accessibility of the management interfaceDetermine if the management interface IP address is reachable from networks outside the trusted local network segment. Review access control lists and firewall rules applied to the management interfaceAffected if The management interface is reachable from untrusted or external networks
A device is affected if it is a Cisco CSS 11500 running firmware version 8.20.4.02 or earlier with the SSH management interface enabled and accessible from untrusted networks.
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 dataUpgrade the Cisco CSS 11500 to a firmware version beyond 8.20.4.02 if available. If no upgrade path exists, implement strict network segmentation and firewall controls to restrict management interface access to trusted local networks only.
Fix this in Content Services Switch 11500 Firmware
Scoped from the published advisory
- Consultation3.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,168.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-0667 — 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-2015-0667 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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
- No spam, self-promotion, credentials, or personal data