Threat Modeling and Security by Design

Threat modeling tooling: Use our tool to start threat modeling within minutes.

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Learn about threat modeling: We have lots of content to teach you about threat modeling.

Our Threat Modeling Tool Helps you to Perform Structured Threat Modeling at Scale

It’s easy to get started with threat modeling and gain initial security value from it. However, rolling out structured threat modeling at scale is a different matter. Our threat modeling tool helps you to get the most of threat modeling, in order to apply security by design and default.

  • Powerful assessment engine to understand potential threats and security weakness.
  • Flexible Diagram engine to visualize components and communication flows in play.
  • Clear reporting and metrics for compliance demonstration.

Try our threat modeling tool and get started within minutes!

Methods

Learn about the various threat modeling methods such as STRIDE, PASTA, LINDDUN, and Persona non Grata.

Tooling

We have a full list of threat modeling tools that can help to perform threat modeling. Including our own threat modeling tool.

Templates

Templates can help to kickstart the process. We have lots of free templates available.

Examples

We believe that you learn best from practical and real-world examples. We have lots of example cases and threat models available.

CVE-2026-13500: ANTLR4 Code Injection in Grammar Action Block Handler — Developer Toolchain Supply Chain Vulnerability (CVSS 7.3)

CVE: CVE-2026-13500 | CVSS 3.1: 7.3 (HIGH) | CWE: Code Injection | Vendor: ANTLR / Terence Parr | Product: ANTLR4 through version 4.13.2 | Component: Grammar Action Block Handler (OutputFile.java) What Is the Vulnerability ANTLR4 (ANother Tool for Language Recognition) is one of the most widely used parser generators in software development. It converts grammar definitions — formal descriptions of language syntax — into…

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Vulnerability Intelligence Report — June 29, 2026

Vulnerability Intelligence Report — June 29, 2026 Coverage: June 1–29, 2026 | Total CISA KEV additions (period): 22 | New KEVs: 0 | KEV deadline TODAY: Cisco SD-WAN CVE-2026-20262 — THE FINAL ACTIVE KEV DEADLINE | After today: KEV calendar CLEARS — zero active deadlines remaining | Total overdue KEVs: 27 Previous reports: June 28, 2026 | June 27, 2026 Monday, June 29, 2026…

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Vulnerability Roundup: FFmpeg RASC Decoder Out-of-Bounds Write (CVE-2026-58049), RustDesk Session Permission Bypass (CVE-2026-58056), libssh2 Integer Overflow (CVE-2026-58050)

CVEs: CVE-2026-58049 (FFmpeg, CVSS 8.6), CVE-2026-58056 (RustDesk, CVSS 7.6), CVE-2026-58050 (libssh2, CVSS 7.0) | Date: June 28, 2026 FFmpeg CVE-2026-58049 — RASC Video Decoder Out-of-Bounds Write (CVSS 8.6) Software affected: FFmpeg — the near-universal multimedia framework. RASC video decoder (libavcodec/rasc.c). CVE: CVE-2026-58049 | CVSS 8.6 (HIGH) | CWE-787 Out-of-bounds Write. The RASC decoder’s decode_dlta function performs 32-bit reads and writes at the row cursor…

Continue Reading Vulnerability Roundup: FFmpeg RASC Decoder Out-of-Bounds Write (CVE-2026-58049), RustDesk Session Permission Bypass (CVE-2026-58056), libssh2 Integer Overflow (CVE-2026-58050)

Microsoft Secure Boot Certificate Expiry: KEK CA 2011 and UEFI CA 2011 Expired — Billions of PCs and Linux Distributions Affected

Operational Advisory — Not a Security Vulnerability. This is a certificate expiry event with global operational impact. No patch is required — UEFI firmware updates from device manufacturers are the remediation path. Certificates Expired: Microsoft Corporation KEK CA 2011 (June 24, 2026) + Microsoft UEFI CA 2011 (June 27, 2026) | Impact: Billions of PCs, all x86 devices since Windows 8 (2012), Linux distributions…

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CVE-2026-58053: Gitea act_runner Container Escape via Workflow Container Options — Docker Backend Bypass (CVSS 9.9)

CVE: CVE-2026-58053 | CVSS 3.1: 9.9 (CRITICAL) | CWE: CWE-269 Improper Privilege Management | Vendor: Gitea | Product: act_runner (CI/CD runner) with Docker backend through act 0.262.0 What Is the Vulnerability Gitea act_runner is the CI/CD pipeline execution engine for Gitea — a popular self-hosted Git platform. The Docker backend for act_runner passes a workflow’s container.options string directly to the Docker job container’s HostConfig…

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Vulnerability Intelligence Report — June 28, 2026

Vulnerability Intelligence Report — June 28, 2026 Coverage: June 1–28, 2026 | Total CISA KEV additions (period): 22 | New KEVs: 0 | KEV deadline TODAY: DOUBLE (PTC Windchill + Cisco UCM, both actively exploited) | KEV deadline TOMORROW: Cisco SD-WAN — LAST active deadline of the period | Total overdue KEVs: 25 Previous reports: June 27, 2026 | June 26, 2026 Sunday, June…

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