Cisco has published security patches, highlighting a vulnerability in multiple products on the 8th of December 2021. It is recommended that you take the necessary precautions by ensuring your products are always updated.
For more information on this update, you can follow this URL:
The Guyana National CIRT recommends that users and administrators review this update and apply it where necessary.
PDF Download: Cisco Security Advisory.pdf
References
Cisco security advisory (8th December 2021). Retrieve from CISCO.
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ
Cisco security advisory (9th December 2021). Retrieve from Cybersecurity & Infrastructure Security Agency.