Webex Business SuiteApplication · Cisco
CVE-2019-1927
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 because the affected software improperly validates Advanced Recording Format (ARF) and Webex Recording Format (WRF) files. 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 improper validation of Advanced Recording Format (ARF) and Webex Recording Format (WRF) files. Attackers can craft malicious recording files that, when opened by a user, allow arbitrary code execution with the user's privileges.
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 Business SuiteApplication
< 39.5.5
Webex Meetings OnlineApplication
< 1.3.43
Webex Meetings ServerApplication
= 2.8= 3.0= 3.0mr2= 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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Identify installed Webex player softwareLocate Cisco Webex Network Recording Player or Webex Player on the Windows system (typically in Program Files). Note the exact product name displayed.Affected if Neither Webex Network Recording Player nor Webex Player is installed, then the system is not affected.
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Check Webex Business Suite versionDetermine the installed version of Cisco Webex Business Suite (if applicable). Compare against the affected range: versions less than 39.5.5.Affected if The installed version is Cisco Webex Business Suite and is less than 39.5.5.
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Check Webex Meetings Online versionDetermine the installed version of Cisco Webex Meetings Online (if applicable). Compare against the affected range: versions less than 1.3.43.Affected if The installed version is Cisco Webex Meetings Online and is less than 1.3.43.
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Check Webex Meetings Server versionDetermine the installed version of Cisco Webex Meetings Server (if applicable). Compare against the affected versions: 2.8, 3.0, 3.0mr2, or 4.0.Affected if The installed version is Cisco Webex Meetings Server and matches exactly 2.8, 3.0, 3.0mr2, or 4.0.
The system is affected if Webex Network Recording Player or Webex Player for Windows is installed and the version matches one of the affected ranges: Webex Business Suite < 39.5.5, Webex Meetings Online < 1.3.43, or Webex Meetings Server version 2.8, 3.0, 3.0mr2, or 4.0.
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 data1.3.4339.5.5
Apply the vendor patch from Cisco to update Webex Network Recording Player and Webex Player to a fixed version. Additionally, train users to avoid opening untrusted recording files from unknown sources.
Fix this in Webex Business Suite
Scoped from the published advisory
- Consultation2.0 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 $2,848.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-1927 — 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-2019-1927 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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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