Exploitation of Citrix NetScaler Zero-Day Hits Appliances Patched Days Earlier

By Eduard Kovacs

AI Summary

Citrix confirmed a new zero-day, CVE-2026-88779, was being actively exploited on NetScaler appliances just days after two other actively exploited flaws were patched, suggesting attackers are chaining or rapidly pivoting to new vulnerabilities in the same product line. The US and Australia issued warnings, and security teams managing customer-facing NetScaler deployments should treat this as an emergency patching priority.

Read full article → https://www.securityweek.com/exploitation-of-citri…

Relevance score: 91.0/100

# More from October 07

1
Hackers obtain counterfeit TLS certificates for Google and other large services Ars Technica Security
3
Critical Atlassian Flaw Lets Unauthenticated Attackers Read Known Files Across 8 Products The Hacker News
4
8.8 Million Impacted by Data Breach at Denmark’s Central Person Register SecurityWeek
5
Alert: FortiBleed remains active campaign, can lock out users or lead to ransomware attacks CyberScoop
6
Hackers exploit 32 zero-days on first day of Pwn2Own Ireland BleepingComputer
7
FBI Removes Accenture Contractor After Patch Failure Led to ShinyHunters Breach The Hacker News
8
ClickFix Smuggles Payloads Through Browser Cache to Bypass Windows Run Limits The Hacker News
9
Personal Information for Over 1 Million People Stolen in a Cyberattack on Arizona’s Court System SecurityWeek
10
FBI Arrests ‘Most Wanted’ Developer of Ploutus ATM Malware SecurityWeek