Analyst readout for executives and security teams
Plain-English summary
This is a Windows desktop risk, not an internet-facing server bug. A user who opens a malicious Webex recording file could have attacker code run on their machine, potentially exposing data or enabling further compromise. The source bundle does not show active exploitation or a specific fixed version.
Executive priority
Treat as high priority for desktop fleets with legacy Webex recording tools. It needs user interaction, but successful exploitation could fully compromise an endpoint. Prioritize inventory and vendor-guided remediation over emergency server response.
Technical view
CVE-2019-1641 affects Cisco Webex Network Recording Player and Cisco Webex Player for Microsoft Windows. The issue is improper validation of ARF and WRF recording files, mapped to CWE-119. CVSS 3.0 is 7.8: local attack vector, low complexity, no privileges, user interaction required, and high confidentiality, integrity, and availability impact.
Likely exposure
Organizations are most exposed where Windows endpoints still have the affected Cisco Webex recording players installed, especially users who receive or open ARF or WRF files from email attachments or links.
Exploitation context
The described attack requires persuading a user to open a malicious ARF or WRF file with the affected software. The bundle marks KEV as false and provides no cited evidence of active exploitation.
Researcher notes
The source bundle supports code execution through malformed ARF or WRF parsing on Windows players. It does not provide exploit maturity, affected version ranges, fixed versions, or confirmed exploitation. Validation should focus on installed software presence and user-file exposure.
Mitigation direction
- Inventory Windows endpoints for Cisco Webex Network Recording Player and Cisco Webex Player.
- Check Cisco's advisory for authoritative fixed software or vendor instructions.
- Remove the affected player where Webex recording playback is no longer required.
- Warn users not to open unsolicited ARF or WRF files from email or links.
- Use endpoint controls to limit exposure from untrusted recording files.
Validation and detection
- Confirm whether affected Webex recording players are installed on Windows endpoints.
- Compare discovered software against Cisco's advisory and asset records.
- Review email and web logs for unsolicited ARF or WRF delivery patterns.
- Check endpoint alerts for suspicious activity following Webex recording file opens.
Public sources used
Based on public source material and reviewed before publication.
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-2019-1641 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
- 20190123 Cisco Webex Network Recording Player Arbitrary Code Execution VulnerabilitiesCVE reference · vendor-advisory, x_refsource_CISCO
- 106704CVE reference · vdb-entry, x_refsource_BID
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.