CVE-2018-0422: n/a vulnerability

CVE-2018-0422: A vulnerability in the folder permissions of Cisco Webex Meetings client for Windows could allow an authent...

A vulnerability in the folder permissions of Cisco Webex Meetings client for Windows could allow an authenticated, local attacker to modify locally stored files and execute code on a targeted device with the privilege level of the user. The vulnerability is due to folder permissions that grant a user the permission to read, write, and execute files in the Webex folders. An attacker could exploit this vulnerability to write malicious files to the Webex client directory, affecting all other users of the targeted device. A successful exploit could allow a user to execute commands with elevated privileges. Attacks on single-user systems are less likely to occur, as the attack must be carried out by the user on the user's own system. Multiuser systems have a higher risk of exploitation because folder permissions have an impact on all users of the device. For an attacker to exploit this vulnerability successfully, a second user must execute the locally installed malicious file to allow remote code execution to occur.

UnknownCVSS not scoredNot KEV-listedUpdatedNov 26, 2024, 14:45 UTC (UTC+00:00)

Security readout for executives and security teams

This is a local Windows endpoint issue in Cisco Webex Meetings client folder permissions. A signed-in user could place files in Webex folders that affect other users of the same computer. If another user runs the placed file, code could run with that user’s privileges. The main business risk is shared or multiuser Windows systems. Exposure is limited to Windows systems with Cisco Webex Meetings client installed. Multiuser endpoints, shared workstations, and environments where different users log into the same device have higher risk. The supplied source bundle does not identify affected versions or CPEs. Treat this as a targeted endpoint hardening issue, not an internet-facing emergency. Prioritize shared Windows devices and environments with multiple local users. Business urgency increases where Webex is broadly deployed on shared workstations. Mitigation focus: Review Cisco advisory cisco-sa-20180905-webex-pe for affected versions and fixed releases.; Update or replace Webex Meetings client for Windows according to Cisco guidance.; Prioritize shared Windows endpoints and multiuser workstations for remediation..

Prepared: Jun 7, 2026, 05:16 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 5, 2018, 14:00 UTC (UTC+00:00)

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.

0CVSS vectors

0Timeline events

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2Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5
20180905 Cisco Webex Meetings Client for Windows Privilege Escalation VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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