Security readout for executives and security teams
Plain-English summary
This flaw affects Cisco Webex recording playback software on Windows. A malicious meeting recording file could run code if a user opens it locally. The business risk is endpoint compromise through social engineering, especially where users exchange or archive Webex ARF or WRF recordings.
Executive priority
Treat as high priority where Webex recording players remain installed. The attack requires user action, but successful exploitation can compromise confidentiality, integrity, and availability on the endpoint under the user’s privileges.
Technical view
CVE-2019-15284 is a high-severity CWE-119 issue in Cisco Webex Network Recording Player and Cisco Webex Player for Microsoft Windows. Insufficient validation of ARF or WRF recording elements can allow arbitrary code execution with the targeted user’s privileges after user interaction.
Likely exposure
Exposure is likely limited to Windows endpoints with affected Cisco Webex recording playback software installed and able to open ARF or WRF files. The provided sources do not define exact affected or fixed versions.
Exploitation context
The source bundle describes a local, user-assisted attack: an attacker sends a malicious ARF or WRF file by link or attachment and persuades a user to open it. KEV is false, and no provided source states active exploitation.
Researcher notes
The evidence supports arbitrary code execution through malformed ARF or WRF content, but the bundle lacks exact version ranges, fixed builds, and exploit telemetry. Avoid assuming broader Webex product impact beyond the named Windows recording players.
Mitigation direction
- Check Cisco’s advisory for affected and fixed player versions.
- Update or remove affected Cisco Webex recording playback software.
- Restrict ARF and WRF file handling from untrusted sources.
- Use email and web controls to flag unexpected recording attachments or links.
- Prioritize endpoints used by executives, support teams, and meeting administrators.
Validation and detection
- Inventory Windows hosts for Cisco Webex recording playback software.
- Identify file associations for ARF and WRF formats.
- Confirm installed versions against Cisco’s advisory.
- Review endpoint alerts involving suspicious recording files.
- Verify users cannot open untrusted ARF or WRF files without controls.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CWE-119: Exact CWE lookup
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Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-15284 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.8HighVector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20191106 Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution VulnerabilitiesCVE reference · vendor-advisory, x_refsource_CISCO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
