Webex MeetingsApplication · Cisco
CVE-2019-15283
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 · uneditedMultiple vulnerabilities in Cisco Webex Network Recording Player for Microsoft Windows and Cisco Webex Player for Microsoft Windows could allow an attacker to execute arbitrary code on an affected system. The vulnerabilities exist due to insufficient validation of certain elements with a Webex recording stored in either the Advanced Recording Format (ARF) or the Webex Recording Format (WRF). An attacker could exploit these vulnerabilities by sending a user a malicious ARF or WRF file through a link or email attachment and persuading the user to open the file with the affected software on the local system. A successful exploit could allow the attacker to execute arbitrary code on the affected system with the privileges of the targeted user.
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 vulnerability exists in Cisco Webex Network Recording Player and Webex Player for Windows due to insufficient validation of certain elements within ARF or WRF recording files. An attacker can embed malicious code in a crafted recording file that, when opened by a user, triggers arbitrary code execution with the privileges of the targeted user.
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 MeetingsApplication
>= 39.5.0, < 39.5.12
Webex Meetings OnlineApplication
< 1.3.44= 32.11= 39.4.0= t32.9= t39.3= t39.6.0
Webex Meetings ServerApplication
= 3.0= 4.0CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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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Verify Cisco Webex Player installationCheck for Webex Player installation by searching for 'Webex Network Recording Player' or 'Webex Player' in Windows Registry under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall or look for the program folder in C:\Program Files\Cisco Systems or C:\Program Files (x86)\Cisco SystemsAffected if Webex Player is not found in the system, the user is not affected by this specific vulnerability since the player must be installed for the flaw to apply
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Identify installed Webex Player versionOpen the Webex Player application and navigate to Help > About, or check the file version of the executable (typically atpplay.exe or WebexPlayer.exe) by right-clicking the file and selecting Properties > DetailsAffected if The installed version matches one of the affected ranges: Webex Meetings >= 39.5.0 and < 39.5.12, Webex Meetings Online versions < 1.3.44, 32.11, 39.4.0, t32.9, t39.3, or t39.6.0, or Webex Meetings Server versions 3.0 or 4.0
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Confirm ARF/WRF recording file support is presentVerify the player can open .arf or .wrf files by attempting to access a known recording file or checking file association settings for these extensions in Windows (HKEY_CLASSES_ROOT\.arf and HKEY_CLASSES_ROOT\.wrf)Affected if ARF/WRF file associations exist and the player can process these recording formats, making the vulnerability applicable
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Inspect for untrusted or unsolicited recording filesSearch the Downloads folder, desktop, and recent document locations for .arf or .wrf files that originate from untrusted or unknown sources, checking file properties for legitimacyAffected if User has opened or intends to open a crafted malicious ARF/WRF file from an untrusted source, which would trigger the vulnerability
User is affected if Cisco Webex Player for Windows is installed with a version matching the specified affected ranges and the player handles ARF/WRF recording files that could be maliciously crafted.
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 data1.3.4439.5.12
Apply vendor patches or update Cisco Webex players to the latest version; users should not open untrusted or unsolicited ARF/WRF recording files.
Fix this in Webex Meetings
Scoped from the published advisory
- Consultation4.0 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 $3,488.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-15283 — 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-2019-15283 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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- 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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