Security readout for executives and security teams
Plain-English summary
CVE-2019-1926 affects Cisco Webex recording players on Windows. A malicious recording file could run code on a user’s computer if the user opens it. This is serious for endpoints that still handle ARF or WRF recordings, but the provided sources do not show active exploitation.
Executive priority
Treat as a high-priority endpoint exposure if your organization uses legacy Webex recording files. Focus on locating affected Windows players, updating or removing them, and reducing user exposure to untrusted recording files.
Technical view
The flaw is improper validation of ARF and WRF files in Cisco Webex Network Recording Player and Cisco Webex Player for Windows. It maps to CWE-119 and has CVSS 7.8. Attack requires local file opening and user interaction; successful exploitation runs code as the targeted user.
Likely exposure
Exposure is most likely on Windows endpoints with Cisco Webex recording playback software installed, especially users who receive meeting recordings by email or links. Exact affected versions are not included in the provided bundle.
Exploitation context
The documented scenario is social engineering: an attacker sends a malicious ARF or WRF file and persuades a user to open it. The bundle marks KEV false and provides no evidence of active exploitation.
Researcher notes
The provided bundle establishes file-parsing memory safety risk, user-assisted exploitation, and arbitrary code execution as the user. It does not provide fixed version details, proof-of-concept status, or evidence of exploitation in the wild.
Mitigation direction
- Inventory Windows systems for Cisco Webex recording playback software.
- Check Cisco’s advisory for affected and fixed software versions.
- Update, replace, or remove affected Webex recording players where possible.
- Warn users not to open unexpected ARF or WRF files.
- Apply email and web filtering for suspicious recording attachments where feasible.
Validation and detection
- Confirm whether Cisco Webex Network Recording Player or Webex Player is installed.
- Compare installed versions against Cisco’s advisory guidance.
- Identify users who routinely receive or open ARF or WRF recordings.
- Review endpoint controls for blocking untrusted recording file execution paths.
- Check whether legacy recording workflows still require these players.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-119: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
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-2019-1926 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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
- 20190807 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.
