Security readout for executives and security teams
Plain-English summary
This flaw affects Cisco Webex recording playback software on Windows. A user who opens a malicious Webex recording file could have code run on their workstation with their own privileges. The main business risk is endpoint compromise through phishing-style delivery, not remote internet scanning.
Executive priority
Treat as a high-priority endpoint remediation item if Webex recording players are deployed. It is not marked as known exploited in the bundle, but phishing-delivered file execution can lead to workstation compromise.
Technical view
Cisco reports insufficient validation of elements inside ARF or WRF Webex recording files. Exploitation requires persuading a user to open a malicious file in the affected Windows player. Successful exploitation can execute arbitrary code as the targeted user. The CVSS 3.0 score is 7.8, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely on Windows endpoints that have Cisco Webex Network Recording Player or Cisco Webex Player installed, especially users who receive or handle ARF or WRF meeting recordings.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires local user interaction: the attacker sends or links a malicious ARF or WRF file and convinces the user to open it.
Researcher notes
Evidence is limited to the CVE metadata and Cisco advisory reference in the bundle. Do not assume affected versions beyond the named Windows Webex players. The vulnerability maps to CWE-119 and depends on malicious ARF or WRF parsing plus user interaction.
Mitigation direction
- Check Cisco’s advisory for affected and fixed player versions.
- Update, replace, or remove affected Webex playback software per Cisco guidance.
- Block or quarantine unexpected ARF and WRF attachments where practical.
- Warn users not to open unsolicited Webex recording files.
- Limit endpoint user privileges to reduce post-exploitation impact.
Validation and detection
- Inventory Windows systems for Cisco Webex Network Recording Player and Webex Player.
- Compare installed versions against Cisco’s advisory guidance.
- Review mail and web controls for ARF and WRF handling.
- Confirm endpoint protection monitors Webex player process behavior.
- Verify users handling recordings have least-privilege accounts.
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-2019-15283 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
- 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.
Improper Restriction of Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.