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Webex Recording Format PlayerApplication · Cisco

CVE-2010-3043

HIGH · 9.3 CVSS v2.0 Published 2011-02-02
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
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
Multiple buffer overflows in the Cisco WebEx Recording Format (WRF) and Advanced Recording Format (ARF) Players T27LB before SP21 EP3 and T27LC before SP22 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted (1) .wrf or (2) .arf file, a different vulnerability than CVE-2010-3041, CVE-2010-3042, and CVE-2010-3044.

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

Buffer overflow vulnerabilities in Cisco WebEx WRF and ARF players allow remote code execution or denial of service when users open maliciously crafted .wrf or .arf files. The vulnerability affects T27LB before SP21 EP3 and T27LC before SP22.

MitigationApply the vendor-supplied patch (SP21 EP3 for T27LB or SP22 for T27LC) to update the WebEx player software to a secure version.

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
Webex Recording Format PlayerApplication
Affected:= 26.49= 27.10= 27.11.0.3328= 27.12= 27.13
Webex Advanced Recording Format PlayerApplication
Affected:= 26.49= 27.10= 27.11.0.3328= 27.12= 27.13

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
M
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/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 if WebEx player software is installed
    Check the system for installed Cisco WebEx Recording Format (WRF) or Advanced Recording Format (ARF) player software. Look in program directories or use system inventory tools to enumerate installed applications.
    Affected if Either the WebEx WRF player or WebEx ARF player is present on the system
  2. Locate the installed WebEx player version
    Access the version information for the installed WebEx player. This is typically found in the player executable properties, about dialog, or registry entries under the Cisco WebEx installation path.
    Affected if Unable to determine version indicates a potentially modified or non-standard installation
  3. Compare installed version against affected versions
    Match the identified version against the vulnerable versions: 26.49, 27.10, 27.11.0.3328, 27.12, 27.13, or any T27LB version before SP21 EP3, or any T27LC version before SP22.
    Affected if Installed version matches one of the vulnerable versions listed in the affected products and versions
  4. Determine if the player handles .wrf or .arf files
    Verify that the WebEx player is configured to process .wrf or .arf recording files, which is the default behavior for these players.
    Affected if The player can open .wrf or .arf files and the version is vulnerable

The environment is affected if Cisco WebEx WRF or ARF player version is 26.49, 27.10, 27.11.0.3328, 27.12, 27.13, or any T27LB before SP21 EP3, or any T27LC before SP22, and users can open .wrf or .arf files with the player.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the vendor-supplied patch (SP21 EP3 for T27LB or SP22 for T27LC) to update the WebEx player software to a secure version.

Recommended fix Moderate confidence

T27LB: upgrade to SP21 EP3 or later; T27LC: upgrade to SP22 or later

  1. 1. Identify the exact WebEx player version installed (WRF or ARF player) by checking the player properties or about dialog
  2. 2. Determine the player baseline (T27LB or T27LC) from the version information
  3. 3. For T27LB baseline: upgrade to Service Pack 21 EP3 (SP21 EP3) or later from Cisco's official download site
  4. 4. For T27LC baseline: upgrade to Service Pack 22 (SP22) or later from Cisco's official download site
  5. 5. Obtain the patched version from Cisco's official support website or through your organization's Cisco software agreement
  6. 6. Uninstall the existing WebEx player version from Add/Remove Programs
  7. 7. Install the patched version of the WebEx player
  8. 8. Verify the installation by checking the updated version number in the player
Caveat Upgrading WebEx players may require compatibility verification with your WebEx meeting services; ensure your organization supports the new player version before deployment

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Webex Recording Format Player Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA3.0 h
19.0 hours of engineering $3,380
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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-2010-3043 in production — separate from our analysis above.

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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