Great news Cisco users, the Cisco Corporation has recently released security updates to address vulnerabilities in multiple cisco products. It is recommended to take the necessary precautions by ensuring your products are always updated to avoid remote attackers from exploiting one of these vulnerabilities to cause denial of service.
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190313-cspcscv
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190313-sip
The Guyana National CIRT recommends users and administration to review these updates and to apply them where necessary.
Reference
https://www.us-cert.gov/ncas/current-activity/2019/03/13/Cisco-Releases-Security-Updates