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Telepresence Te SoftwareApplication · Cisco

CVE-2014-2164

HIGH · 7.8 CVSS v2.0 Published 2014-05-02
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
87/100
Remediation priority · High
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
The SIP implementation in Cisco TelePresence TC Software 4.x and 5.x and TE Software 4.x and 6.0 allows remote attackers to cause a denial of service (device reload) via crafted SIP packets, aka Bug ID CSCuj94651.

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

The SIP (Session Initiation Protocol) implementation in Cisco TelePresence TC Software versions 4.x and 5.x and TE Software versions 4.x and 6.0 contains a vulnerability that allows remote attackers to trigger a denial of service condition causing the device to reload by sending specially crafted SIP packets to the affected system.

MitigationApply the relevant Cisco software update or patch for this vulnerability. If immediate patching is not possible, consider restricting SIP access to trusted sources via firewall rules or ACLs to reduce attack surface.

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
Telepresence Te SoftwareApplication
Affected:= 4.1.0= 4.1.1= 4.1.2= 4.1.3= 6.0
Telepresence Tc SoftwareApplication
Affected:= 4.0.0= 4.0.1= 4.0.4= 4.1.1= 4.1.2= 4.2.0= 4.2.1= 4.2.2= 4.2.3= 4.2.4= 5.0.0= 5.0.1

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
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:N/AC:L/Au:N/C:N/I:N/A:C

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 the Cisco TelePresence software version
    Log into the device CLI and run 'show version' or check via the web administration interface under System Information or Diagnostics
    Affected if The version listed matches any of these: TE: 4.1.0, 4.1.1, 4.1.2, 4.1.3, 6.0 or TC: 4.0.0, 4.0.1, 4.0.4, 4.1.1, 4.1.2, 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 5.0.0, 5.0.1
  2. Confirm SIP protocol is enabled on the device
    Check the device configuration via CLI using 'show sip status' or via the web interface under Protocols > SIP to see if SIP is registered and active
    Affected if SIP is enabled and the device is registered to a SIP server or accepting SIP connections
  3. Verify SIP listening ports are exposed
    Check if UDP or TCP port 5060 (SIP port) is open and listening on the device using 'show network ethernet' or by scanning the device from the network
    Affected if Port 5060 is open and reachable from untrusted networks
  4. Check for recent unexpected reloads or crashes
    Review system logs via 'show logs' or the event log in the web interface for any reload events without clear administrative cause
    Affected if There are unexplained reload events coinciding with periods of SIP traffic

You are affected if the device runs one of the listed software versions AND has SIP protocol enabled and exposed to the network where attackers could send malicious SIP packets.

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 the relevant Cisco software update or patch for this vulnerability. If immediate patching is not possible, consider restricting SIP access to trusted sources via firewall rules or ACLs to reduce attack surface.

Fix this in Telepresence Te Software Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
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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-2014-2164 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
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