3 publications · 3 reports

Citrix releases emergency updates for exploited NetScaler zero-day vulnerability

The Next Interrupt briefing

AI-generated · Updated · Oct 13, 2026 · How we work

Citrix confirmed a new zero-day vulnerability affecting NetScaler appliances, tracked as CVE-2026-88779, which emerged shortly after previous flaws received patches. [2][3]

What changed

The company has issued emergency updates to address the denial-of-service issue following zero-day exploitation in the wild. [3]

What remains uncertain

Researchers are investigating whether the vulnerability can additionally be exploited to achieve remote code execution. [3]

Across the publications

PublicationOrder3 publications

Cybersecurity illustration · BleepingComputer

[3] BleepingComputerPublisher coverage

Oct 4, 4:58 PM CT

Citrix patches NetScaler SAML zero-day exploited in attacks

Citrix has released emergency updates for a new NetScaler denial-of-service vulnerability tracked as CVE-2026-88779 that has been exploited in zero-day attacks, with researchers investigating whether it can also be exploited for remote code execution.

Excerpt · BleepingComputer

Read at BleepingComputer

Cybersecurity illustration · SecurityWeek

[2] SecurityWeekPublisher coverage

Oct 5, 12:14 AM CT