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CVE Record

CVE-2019-1926: Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulnerabilities

Multiple vulnerabilities in Cisco Webex Network Recording Player for Microsoft Windows and Cisco Webex Player for Microsoft Windows could allow an attacker to execute arbitrary code on an affected system. The vulnerabilities exist because the affected software improperly validates Advanced Recording Format (ARF) and Webex Recording Format (WRF) files. An attacker could exploit these vulnerabilities by sending a user a malicious ARF or WRF file through a link or email attachment and persuading the user to open the file with the affected software on the local system. A successful exploit could allow the attacker to execute arbitrary code on the affected system with the privileges of the targeted user.

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

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.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · low confidence lookup

CWE-119: Exact CWE lookup

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description · low confidence lookup

Execution 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.

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cve · low confidence lookup

CVE-2019-1926 mapping review

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Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.0HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.8High
CVSS 3.0 vector shape for CVE-2019-1926Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
CiscoCisco WebEx WRF PlayerunspecifiedListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.