watchTowr Labs

About watchTowr Labs

watchTowr Labs is the epicentre of offensive security expertise at watchTowr - where research, innovation, and real attacker insight power our Preemptive Exposure Management technology.

This blog offers a glimpse into the original research behind the continuous, attacker-aligned engine that drives the watchTowr Platform.

Blog posts

Stack Overflows, Heap Overflows, and Existential Dread (SonicWall SMA100 CVE-2025-40596, CVE-2025-40597 and CVE-2025-40598)

It’s 2025, and at this point, we’re convinced there’s a secret industry-wide pledge: every network appliance must include at least one trivially avoidable HTTP header parsing bug - preferably pre-auth. Bonus points if it involves sscanf. If that’s the case, well done! SonicWall’s SMA100 series

Pre-Auth SQL Injection to RCE - Fortinet FortiWeb Fabric Connector (CVE-2025-25257)

Welcome back to yet another day in this parallel universe of security. This time, we’re looking at Fortinet’s FortiWeb Fabric Connector. “What is that?” we hear you say. That's a great question; no one knows. For the uninitiated, or unjaded; Fortinet’s FortiWeb Fabric Connector is

How Much More Must We Bleed? - Citrix NetScaler Memory Disclosure (CitrixBleed 2 CVE-2025-5777)

Before you dive into our latest diatribe, indulge us and join us on a journey. Sit in your chair, stand at your desk, lick your phone screen - close your eyes and imagine a world in which things are great. It’s sunny outside, the birds are chirping, and your

Is b For Backdoor? Pre-Auth RCE Chain In Sitecore Experience Platform

Welcome to June! We’re back—this time, we're exploring Sitecore’s Experience Platform (XP), demonstrating a pre-auth RCE chain that we reported to Sitecore in February 2025. We’ve spent a bit of time recently looking at CMS’s given the basic fact that they represent attractive

Expression Payloads Meet Mayhem - Ivanti EPMM Unauth RCE Chain (CVE-2025-4427 and CVE-2025-4428)

Keeping your ears to the ground and eyes wide open for the latest vulnerability news at watchTowr is a given. Despite rummaging through enterprise code looking for 0days on a daily basis, our interest was piqued this week when news of fresh vulnerabilities was announced in a close friend -

SysOwned, Your Friendly Support Ticket - SysAid On-Premise Pre-Auth RCE Chain (CVE-2025-2775 And Friends)

It’s… another week, and another vendor who is apparently experienced with ransomware gangs but yet struggles with email. In what we've seen others term "the watchTowr treatment", we are once again (surprise, surprise) disclosing vulnerability research that allowed us to gain pre-authenticated Remote Command Execution

SonicBoom, From Stolen Tokens to Remote Shells - SonicWall SMA (CVE-2023-44221, CVE-2024-38475)

Another day, another edge device being targeted - it’s a typical Thursday! In today’s blog post, we’re excited to share our previously private analysis of the now exploited in-the-wild N-day vulnerabilities affecting SonicWall’s SMA100 appliance. Over the last few months, our client base has fed us

Fire In The Hole, We’re Breaching The Vault - Commvault Remote Code Execution (CVE-2025-34028)

As we pack our bags and prepare for the adult-er version of BlackHat (that apparently doesn’t require us to print out stolen mailspoolz to hand to people at their talks), we want to tell you about a recent adventure - a heist, if you will. No heist story is

Is The Sofistication In The Room With Us? - X-Forwarded-For and Ivanti Connect Secure (CVE-2025-22457)

What's that Skippy? Another Ivanti Connect Secure vulnerability? At this point, regular readers will know all about Ivanti (and a handful of other vendors of the same class of devices), from our regular analysis. Do you know the fun things about these posts? We can copy text from

XSS To RCE By Abusing Custom File Handlers - Kentico Xperience CMS (CVE-2025-2748)

We know what you’re waiting for - this isn’t it. Today, we’re back with more tales of our adventures in Kentico’s Xperience CMS. Due to it’s wide usage, the type of solution, and the types of enterprises using this solution - any serious vulnerability, or