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JabberApplication · Cisco

CVE-2013-3393

MEDIUM · 5.0 CVSS v2.0 Published 2013-06-26
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
59/100
Remediation priority · Elevated
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 Precision Video Engine component in Cisco Jabber for Windows and Cisco Virtualization Experience Media Engine allows remote attackers to cause a denial of service (process crash and call disconnection) via crafted RTP packets, aka Bug IDs CSCuh60706 and CSCue21117.

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 · moderate confidence

This is a denial of service vulnerability in the Precision Video Engine component of Cisco Jabber for Windows and Cisco Virtualization Experience Media Engine. Remote attackers can cause process crashes and call disconnections by sending specially crafted RTP (Real-time Transport Protocol) packets to vulnerable installations.

MitigationApply the relevant Cisco security patches for Cisco Jabber for Windows and Virtualization Experience Media Engine. As a temporary measure, consider implementing network-level filtering of suspicious RTP traffic at the perimeter.

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
JabberApplication
Affected:all versions
Virtualization Experience Media EngineApplication
Affected:all versions

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
Partial

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

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. Check if Cisco Jabber for Windows is installed
    Open Windows Control Panel > Programs and Features, or check for the installation at C:\Program Files\Cisco Systems\Cisco Jabber, or run 'Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* | Where-Object {$_.DisplayName -like "*Cisco Jabber*"}' in PowerShell
    Affected if Cisco Jabber for Windows appears in installed programs
  2. Check if Cisco Virtualization Experience Media Engine is installed
    Open Windows Control Panel > Programs and Features, or check for the installation at C:\Program Files\Cisco Systems\Cisco Virtualization Experience Media Engine, or run 'Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* | Where-Object {$_.DisplayName -like "*Virtualization Experience Media Engine*"}' in PowerShell
    Affected if Cisco Virtualization Experience Media Engine appears in installed programs
  3. Confirm the Precision Video Engine component is present
    Check for the presence of video-related DLLs or executables in the Cisco Jabber or Cisco Virtualization Experience Media Engine installation directories, such as PrecisionVideoEngine.dll or similar video engine components
    Affected if The Precision Video Engine component files exist in the installation directory
  4. Determine if RTP-based video calling is enabled
    Review the Cisco Jabber or Virtualization Experience Media Engine configuration settings for video call functionality, or monitor network traffic for RTP streams on typical RTP ports (ports 16384-32767 or 5000-6000 range) during active calls
    Affected if Video calling or RTP streaming features are configured or actively used

If either Cisco Jabber for Windows or Cisco Virtualization Experience Media Engine is installed with the Precision Video Engine component and video/RTP functionality is enabled, the environment is affected by this CVE.

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 security patches for Cisco Jabber for Windows and Virtualization Experience Media Engine. As a temporary measure, consider implementing network-level filtering of suspicious RTP traffic at the perimeter.

Fix this in Jabber Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
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Scan for this in your stack

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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-2013-3393 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
  • No spam, self-promotion, credentials, or personal data