Webex MeetingsApplication · Cisco
CVE-2021-1544
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 · uneditedA vulnerability in logging mechanisms of Cisco Webex Meetings client software could allow an authenticated, local attacker to gain access to sensitive information. This vulnerability is due to unsafe logging of application actions. An attacker could exploit this vulnerability by logging onto the local system and accessing files containing the logged details. A successful exploit could allow the attacker to gain access to sensitive information, including meeting data and recorded meeting transcriptions.
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 confidenceThe Cisco Webex Meetings client contains a vulnerability in its logging functionality that unsafely records application actions to local files. An authenticated attacker with local system access can read these log files to obtain sensitive meeting data and recorded meeting transcriptions. The vulnerability stems from improper handling or protection of logged information.
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
< 41.4.0CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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 Cisco Webex Meetings versionOpen the Webex Meetings client and navigate to Help > About, or check the version listed in Windows Add/Remove Programs, or right-click the Webex executable and select Properties > DetailsAffected if The displayed version number is lower than 41.4.0 (for example, 41.3.12 or earlier)
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Locate Webex client log directoriesSearch the system for directories named 'logs' or 'log' within the Webex application folder, typically found under the user AppData folder or Program FilesAffected if Log directories exist and contain log files from the Webex client application
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Verify log file contents contain sensitive dataOpen the log files using a text editor and search for keywords such as 'transcription', 'meeting', 'recording', or sensitive data patternsAffected if Log files contain meeting transcriptions, recorded meeting data, or other sensitive information in plaintext
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Check file permissions on Webex log directoriesRight-click the Webex log folder, select Properties, then navigate to the Security tab to review which users and groups have read accessAffected if Users other than the system administrator or the installing user have read permissions to the log directories
You are affected if Cisco Webex Meetings version is below 41.4.0 AND log files containing meeting data or transcriptions are present and readable by non-admin users on the system.
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 data41.4.0
Apply the vendor patch when available. Until then, restrict local system access to trusted personnel and monitor log file locations for unauthorized access. Consider implementing additional access controls on the Webex client log directories.
Fix this in Webex Meetings
Scoped from the published advisory
- Consultation2.0 h
- Implementation1.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,936.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-1544 — 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-2021-1544 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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- Version or environment caveats, and links to real fixes
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