Security Alert (A21-04-01): Multiple Vulnerabilities in Cisco Products
09 April 2021
Cisco released security advisories to address multiple vulnerabilities in Cisco devices and software. For information about the vulnerabilities and the attacking vectors, please refer to the corresponding security advisories at the vendor's website.
Cisco products running IOS XR Software
Cisco Advanced Malware Protection
Cisco SD-WAN vManage
Cisco Small Business RV Series Routers
Cisco Umbrella (cloud based)
Cisco Unified Communications Products
Cisco Unified Intelligence Center Software
Cisco Webex Meetings
For detailed information of the affected products, please refer to the section "Affected Products" of corresponding security advisory at vendor's website.
Depending on the vulnerabilities being exploited, a successful exploitation could lead to arbitrary command injection, arbitrary code execution, cross-site scripting, denial of service, information disclosure, security restriction bypass, system reload, data tampering, privilege escalation or take control of affected system.
Software updates for affected systems are now available. System administrators of affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk. For detailed information of the available patches, please refer to the section "Fixed Software" of corresponding security advisory at vendor's website.
System administrators should contact their product support vendors for the fixes and assistance.