Security News

CISA Adds 8 Exploited Flaws to KEV, Sets April-May 2026 Federal Deadlines

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added eight new vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, including three flaws impacting Cisco Catalyst SD-WAN Manager, citing evidence of active exploitation. The list of vulnerabilities is as follows - CVE-2023-27351 (CVSS score: 8.2) - An improper authentication vulnerability in PaperCut

ISC Stormcast For Tuesday, April 21st, 2026 https://isc.sans.edu/podcastdetail/9900, (Tue, Apr 21st)

Vercel Employee's AI Tool Access Led to Data Breach

Stolen OAuth tokens, which are at the root of these breaches, "are the new attack surface, the new lateral movement," a researcher noted.

Serial-to-IP Devices Hide Thousands of Old and New Bugs

The OT devices that translate machine talk into Internet-speak are riddled with vulnerabilities and more frequently targeted for attacks, researchers say.

SGLang CVE-2026-5760 (CVSS 9.8) Enables RCE via Malicious GGUF Model Files

A critical security vulnerability has been disclosed in SGLang that, if successfully exploited, could result in remote code execution on susceptible systems. The vulnerability, tracked as CVE-2026-5760, carries a CVSS score of 9.8 out of 10.0. It has been described as a case of command injection leading to the execution of arbitrary code. SGLang is a high-performance, open-source serving

WhatsApp Leaks User Metadata to Attackers

Strangers can infer limited info about you without knowing or messaging you, which could theoretically aid certain kinds of malicious activity.

⚡ Weekly Recap: Vercel Hack, Push Fraud, QEMU Abused, New Android RATs Emerge & More

Monday’s recap shows the same pattern in different places. A third-party tool becomes a way in, then leads to internal access. A trusted download path is briefly swapped to deliver malware. Browser extensions act normally while pulling data and running code. Even update channels are used to push payloads. It’s not breaking systems—it’s bending trust. There’s also a shift in how attacks run.

Why Most AI Deployments Stall After the Demo

The fastest way to fall in love with an AI tool is to watch the demo. Everything moves quickly. Prompts land cleanly. The system produces impressive outputs in seconds. It feels like the beginning of a new era for your team. But most AI initiatives don't fail because of bad technology. They stall because what worked in the demo doesn't survive contact with real operations. The gap between a

Anthropic MCP Design Vulnerability Enables RCE, Threatening AI Supply Chain

Cybersecurity researchers have discovered a critical "by design" weakness in the Model Context Protocol's (MCP) architecture that could pave the way for remote code execution and have a cascading effect on the artificial intelligence (AI) supply chain. "This flaw enables Arbitrary Command Execution (RCE) on any system running a vulnerable MCP implementation, granting attackers direct access to

Researchers Detect ZionSiphon Malware Targeting Israeli Water, Desalination OT Systems

Cybersecurity researchers have flagged a new malware called ZionSiphon that appears to be specifically designed to target Israeli water treatment and desalination systems. The malware has been codenamed ZionSiphon by Darktrace, highlighting its ability to set up persistence, tamper with local configuration files, and scan for operational technology (OT)-relevant services on the local subnet.

Handling the CVE Flood With EPSS, (Mon, Apr 20th)

Every morning, security people around the world face the same ritual: opening their vulnerability feed to find a lot of new CVE entries that appeared overnight. Over the past decade, this flood has become a defining challenge of modern defensive security. Some numbers[1]:

Vercel Breach Tied to Context AI Hack Exposes Limited Customer Credentials

Web infrastructure provider Vercel has disclosed a security breach that allows bad actors to gain unauthorized access to "certain" internal Vercel systems. The incident stemmed from the compromise of Context.ai, a third-party artificial intelligence (AI) tool, that was used by an employee at the company. "The attacker used that access to take over the employee's Vercel Google Workspace account,

ISC Stormcast For Monday, April 20th, 2026 https://isc.sans.edu/podcastdetail/9898, (Mon, Apr 20th)

$13.74M Hack Shuts Down Sanctioned Grinex Exchange After Intelligence Claims

Grinex, a Kyrgyzstan-incorporated cryptocurrency exchange sanctioned by the U.K. and the U.S. last year, said it's suspending operations after it blamed Western intelligence agencies for a $13.74 million hack. The exchange said it fell victim to what it described as a large-scale cyber attack that bore hallmarks of foreign intelligence agency involvement. This attack led to the theft of over 1

Mirai Variant Nexcorium Exploits CVE-2024-3721 to Hijack TBK DVRs for DDoS Botnet

Threat actors are exploiting security flaws in TBK DVR and end‑of‑life (EoL) TP-Link Wi-Fi routers to deploy Mirai-botnet variants on compromised devices, according to findings from Fortinet FortiGuard Labs and Palo Alto Networks Unit 42. The attack targeting TBK DVR devices has been found to exploit CVE-2024-3721 (CVSS score: 6.3), a medium-severity command injection vulnerability affecting

How NIST's Cutback of CVE Handling Impacts Cyber Teams

Industry and ad hoc coalitions appear poised to help fill the gap created by NIST's decision to cut back on CVE data enrichment.

Tycoon 2FA Phishers Scatter, Adopt Device Code Phishing

In embracing device code phishing, attackers trick victims into handing over account access by using a service's legitimate new-device login flow.

Every Old Vulnerability Is Now an AI Vulnerability

AI's danger isn't that it's creating new bugs, it's that it's amplifying old ones.

Three Microsoft Defender Zero-Days Actively Exploited; Two Still Unpatched

Huntress is warning that threat actors are exploiting three recently disclosed security flaws in Microsoft Defender to gain elevated privileges in compromised systems. The activity involves the exploitation of three vulnerabilities that are codenamed BlueHammer (requires GitHub sign-in), RedSun, and UnDefend, all of which were released as zero-days by a researcher known as Chaotic Eclipse (

Coast Guard's New Cybersecurity Rules Offers Lessons for CISOs

The Maritime Transportation Security Act (MTSA) requires plans to protect OT systems, audits by independent third parties, and a hybrid OT-security role.