Weekly Advisories

Emergent Threat Intelligence

Original threat advisories covering active campaigns, real attack paths, and specific remediation guidance. Written for practitioners..

2026-05-15 CISA KEV

Linux Kernel algif_aead Privilege Escalation Now Actively Exploited: Patch Immediately

A local privilege escalation vulnerability in the Linux kernel's cryptographic subsystem (algif_aead) is now under active exploitation. CVE-2026-31431 stems from an incorrect resou

2026-05-10

Dirty Frag: Linux Kernel ESP Decryption Flaw Enables Local Privilege Escalation to Root

A critical vulnerability in the Linux kernel's ESP (Encapsulating Security Payload) handling allows local attackers to escalate privileges to root. Tracked as CVE-2026-43284, the f

2026-05-03 CISA KEV

Your Firewall Is Part of Your Attack Surface

Three actively exploited Fortinet CVEs show why firewalls and VPN appliances are high-value targets, not just protective controls. A CVSS score does not tell you whether your perimeter device is already being scanned for exploitation.

2026-05-02 CISA KEV

The Nginx Management Interface Problem: Two Actively Exploited CVEs Enable Full Server Takeover

Two critical vulnerabilities in nginx-ui chain together for complete unauthenticated server takeover. Attackers are not going after nginx — they are going after the management tooling organizations layer on top of it.

2026-05-02

NGINX TLS Session Ticket Key Reuse Allows Client Certificate Authentication Bypass

CVE-2025-23419 is a vulnerability in F5 NGINX that allows attackers to bypass client certificate authentication when TLS session tickets are enabled across multiple virtual servers

2026-05-02 CISA KEV

Dirty COW (CVE-2016-5195): The Linux Kernel Race Condition That Refuses to Die

CVE-2016-5195, widely known as "Dirty COW," is a race condition vulnerability in the Linux kernel's memory subsystem that allows local privilege escalation to root. The flaw exists