Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

On March 28, 2026, F5 updated its security advisory for a vulnerability impacting BIG-IP APM that was originally disclosed in October 2025 (CVE-2025-53521). The vulnerability was initially classified as a medium-severity denial-of-service (DoS) issue but has been reclassified as a critical remote code execution (RCE) vulnerability. F5 has stated CVE-2025-53521 is being exploited by unauthenticated remote threat actors to deploy web shells.

CVE-2025-53521 is an unauthenticated remote code execution vulnerability in F5's BIG-IP Access Policy Manager (APM). The flaw exists in the apmd process, the daemon responsible for processing live access policy traffic, and is triggered when a BIG-IP APM access policy is configured on a virtual server and the system receives specific malicious traffic. No credentials are required to exploit it. The vulnerability carries a CVSS score of 9.8 and a CVSS score of 9.3.

The adoption of personal AI assistants is on the rise. everywhere. Developers, power users, and in a few cases, entire teams self-host them to connect messaging apps, automate tasks, and interact with AI models across their infrastructure. But when these self-hosted gateways become compromised, the blast radius can extend far beyond a single user’s chat history.

On March 31, 2026, two malicious versions of axios, the enormously popular JavaScript HTTP client with over 100 million weekly downloads, were briefly published to npm via a compromised maintainer account. The packages contained a hidden dependency that deployed a cross-platform remote access trojan (RAT) to any machine that ran npm install (or equivalent in other package managers like Bun) during a two-hour window. The malicious versions (1.14.1 and 0.30.4) were removed from npm by 03:29 UTC.

Arctic Wolf has recently observed a phishing campaign targeting Microsoft 365 that abuses the OAuth device code flow to trick victims into providing authentication codes. Threat actors use Railway’s Platform-as-a-Service (PaaS) infrastructure (a trusted cloud platform with valid IP addresses) to host attack components, allowing the activity to blend in with normal traffic. This enables threat actors to steal valid access and refresh tokens and bypass multi‑factor authentication protections.

In the age of AI-driven development, speed is the new baseline. But as AI agents accelerate the pace of coding, they also amplify the risk of security bottlenecks. At Snyk, we believe a superior Developer Experience (DX) is the only way to secure this new frontier. DX is not just a layer on top of the product. It is the foundation that allows developers to unleash AI innovation securely. We think of DX as a system of decisions that compound over time.

On March 23, 2026, Cloud Software Group (Citrix) published a security bulletin disclosing two vulnerabilities in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway). Both affect customer-managed on-premises deployments; Citrix-managed cloud services and Adaptive Authentication instances have been updated automatically. CVE-2026-3055 is an out-of-bounds read resulting from insufficient input validation in NetScaler ADC and NetScaler Gateway.

Zero-day exploits rarely announce themselves. There is no public advisory yet. No CVE identifier. No detection signature sitting inside a rule library. The vulnerability exists quietly until someone discovers it and unfortunately attackers often discover it first. Once that happens, the exploit becomes a test of visibility. Attackers do not usually rush into environments using zero-days. They explore carefully. They check which systems respond. They observe how security tools behave.

Cyber threats are at an all-time high because the digital world is rapidly changing. Every day, new vulnerabilities are found in security systems. Attacks threaten businesses of all sizes by stealing data, disrupting operations, and damaging reputations. It has become clear that Vulnerability Management as a Service (VMaaS) is an effective managed approach for companies to protect their digital assets without managing security systems themselves.