Generic filters
Exact matches only
Search in title
Search in content
Filter by Custom Post Type
Filter by Categories

[CVSS 9+] CISA Catalog Update: New Citrix and Cisco Vulnerabilities

Executive Summary

On October 19, 2023, the Cybersecurity and Infrastructure Security Agency (CISA) updated its Known Exploited Vulnerabilities Catalog with two fresh vulnerabilities, following substantiated instances of active exploitation.

The catalog is a dynamic list comprises known Common Vulnerabilities and Exposures (CVEs) that pose substantial risks to federal networks. Typically, vulnerabilities making it to this catalog are proven targets for malicious cyber actors.

It’s crucial that organizations heed this update and act swiftly to implement the necessary patches or mitigation measures to shield their systems from potential cyber threats.

About CVE-2023-4966

CVE-2023-4966 outlines a Buffer Overflow Vulnerability residing in Citrixs NetScaler ADC and NetScaler Gateway. Its CVSS score is 7.5 according to NVD, while Citrix Systems, Inc. rates it as 9.4.

This flaw could potentially enable attackers to execute arbitrary code, hence causing severe damage. Citrix has acknowledged the issue and provided patches to rectify this vulnerability. Immediate patch application is highly recommended to prevent exploitation.

About CVE-2021-1435

CVE-2021-1435 vulnerability relates to a Command Injection flaw in the Web UI of Cisco’s IOS XE.

With a CVSS score of 7.2, this critical vulnerability could let attackers execute arbitrary commands with elevated privileges. Cisco has already rolled out patches to address this issue in 2021. Prompt update is imperative to mitigate the risk associated with this vulnerability.

Key Takeaways

The updates from CISA serve as a reminder of the constant evolution of the threat landscape and the importance of staying ahead to protect organizational assets.

It is crucial to remain vigilant about vulnerability disclosures and take immediate action to patch or mitigate identified vulnerabilities.

Following to a disciplined vulnerability management practice, which includes regular patching and implementing a defense in depth strategy, can significantly minimize the exposure to cyberattacks.



Cubic Lighthouse is a cybersecurity publication dedicated to demystifying security, making news actionable, providing deeper thinking about the fundamentals of security, and providing decision-makers and the community at large with the right information to make the right decisions. We will also feature more technical articles and provide personal/family security advice.

©2024 Cubic Consulting, a Smart Security Company for your Business – All Rights Reserved.