Cybersecurity Headlines — May 29, 2026


From the Trenches

As a cybersecurity practitioner, I’m seeing two stories that are making me sit up and take notice - Windows Netlogon RCE exploited, domain controllers at risk (CVE-2026-41089) (Help Net Security) and Zero-Click pretalx XSS Flaw Lets Hackers Hijack Conference Organizer Accounts (HackRead).

The Windows Netlogon RCE flaw is a serious one, and it’s no surprise that attackers are already exploiting it. Domain controllers are essentially the entry points for most networks, and if they’re vulnerable, it’s like leaving your front door wide open to anyone who wants in. This flaw has been around since 2022, and yet it’s still being used by attackers today - it’s a stark reminder of how important patching is, especially when it comes to critical services like Netlogon.

The Zero-Click pretalx XSS Flaw takes the cake for sheer audacity, though. It’s not just that hackers can exploit this flaw to hijack conference organizer accounts - they can do so with zero clicks required, meaning no user interaction whatsoever. This is a classic sign of an advanced persistent threat (APT) attack, where the goal is to move laterally through a network without being detected. As a practitioner, I’ve seen my fair share of APT attacks, and this flaw just makes it that much more worrisome.

🔧 Patch Priority: Windows Netlogon RCE (CVE-2026-41089) - This critical flaw has already been exploited in real-world attacks, making immediate patching a top priority for organizations running Windows.


Compiled daily. Stay patched, stay vigilant.