CISA Adds One Known Exploited Vulnerability to Catalog

Key Points:

• CISA has added CVE-2026-88779, a vulnerability in Citrix NetScaler, to its Known Exploited Vulnerabilities (KEV) Catalog due to evidence of active exploitation.
• This vulnerability allows attackers to exploit improper restrictions within memory buffers, posing significant risks to federal systems and potentially granting total control post-exploitation.
• Organizations are urged to prioritize rapid remediation of this high-risk vulnerability, especially those with publicly exposed assets, and to adopt risk-based vulnerability management practices.

Technical Details: CVE-2026-88779 is characterized by improper restriction of operations within the bounds of a memory buffer, making it a frequent target for cyber actors.

MITRE ATT&CK Techniques: None mentioned

IOCs Mentioned: None mentioned