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CVE-2022-20863: Cisco Security Advisory: Cisco Webex Meetings App Character Interface Manipulation Vulnerability

A vulnerability in the messaging interface of Cisco Webex App, formerly Webex Teams, could allow an unauthenticated, remote attacker to manipulate links or other content within the messaging interface. This vulnerability exists because the affected software does not properly handle character rendering. An attacker could exploit this vulnerability by sending messages within the application interface. A successful exploit could allow the attacker to modify the display of links or other content within the interface, potentially allowing the attacker to conduct phishing or spoofing attacks.

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  • When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, to determine exposure and a complete upgrade solution.

    In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.

    Fixed Releases

    At the time of publication, the release information in the following table(s) was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.

    The left column lists Cisco software releases, and the right column indicates whether a release was affected by the vulnerability that is described in this advisory and which release included the fix for this vulnerability.

    Cisco Webex App Release

    First Fixed Release

    Earlier than 42.7

    Migrate to a fixed release.

    42.7

    Not affected.

    42.8

    Not affected.

    The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.

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Cisco Releases Security Patches for New Vulnerabilities Impacting Multiple Products

Cisco on Wednesday rolled out patches to address three security flaws affecting its products, including a high-severity weakness disclosed in NVIDIA Data Plane Development Kit (MLNX_DPDK) late last month. Tracked as CVE-2022-28199 (CVSS score: 8.6), the vulnerability stems from a lack of proper error handling in DPDK's network stack, enabling a remote adversary to trigger a denial-of-service (

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