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Vulnerability Brief — October 29, 2026

6 items in DIGEST_VULN digest.

LiveThreat™ Intelligence · 📅 October 29, 2026

⚠️ LiveThreat Vulnerability Brief — Oct 29, 2026

🧭 Critical flaws surface across the software stack — from PHP runtimes to server firmware

📌 What happened: Today's digest is dominated by critical vulnerability disclosures in foundational technology: the PHP runtime, Microsoft Edge's sandbox, UEFI server firmware, and Tailscale's SSH — while CISA confirmed active exploitation of flaws in Google's Brotli library and Adobe Commerce/Magento. That extends the month-long pattern where vulnerability exploitation in tech and cloud vendors has been nearly the entire story.

⚖️ Why it matters for compliance: Flaws this deep in the stack — firmware, language runtimes, remote-access tools — are where patching speed and vendor oversight get tested, so knowing your exposure and acting fast is what keeps you ready.

🎯 Who's affected: Technology and SaaS vendors, cloud and hosting providers, and anyone running PHP web servers, Magento storefronts, Tailscale networks, or Intelbras cameras.

✅ Recommended actions:

• Patch the actively exploited Brotli and Magento flaws first

• Inventory exposure to PHP, UEFI firmware, and Tailscale

• Ask key vendors for their status on today's critical fixes

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📰 The headlines behind this brief:

⚠️ OffSec Releases Free PHP2Shell Lab After Disclosing Critical Remote‑Code‑Execution Vulnerability in PHP

OffSec disclosed a critical RCE flaw in PHP (CVE‑2024‑XXXXX) that lets attackers execute arbitrary commands on vulnerable servers. The vulnerability highlights …

🔗 https://www.verisq.ai/intelligence/offsec-launches-free-php2shell-lab-following-critical-vulnerability-discovery-71752

⚠️ Logic Flaw Chain Bypasses Microsoft Edge Sandbox, Enables Code Execution – $175K Pwn2Own Reveal

A researcher demonstrated a chain of pure logic bugs that let a malicious web page break Microsoft Edge's sandbox and run code on Windows. The finding highlight…

🔗 https://www.verisq.ai/intelligence/researcher-reveals-how-logic-bugs-alone-cracked-microsoft-edge-in-175-000-pwn2own-win-71686

⚠️ Critical UEFI Buffer Overflow (CVE-2026-97631) Lets Pre‑OS Code Execution on Servers

A 9.5‑CVSS buffer overflow in the open‑source EDK II UEFI firmware enables unauthenticated attackers to run code before the OS boots, threatening confidentialit…

🔗 https://www.verisq.ai/intelligence/cve-2026-97631-16-year-old-uefi-flaw-threatens-servers-71666

💥 CISA Adds Critical Google Brotli and Adobe Commerce/Magento Flaws to KEV Catalog

CISA has listed CVE‑2026‑111497 (Brotli) and CVE‑2026‑48356 (Magento) in its KEV catalog, both scoring 9+ on CVSS and already observed in the wild. Organization…

🔗 https://www.verisq.ai/intelligence/u-s-cisa-adds-google-brotli-and-adobe-commerce-and-magento-flaws-to-its-known-exploited-vulnerabilities-catalog-71667

⚠️ Critical Unchecked Return Value Vulnerability in Google Brotli (CVE-2026-111497) Enables Remote Code Execution

A new CVE-2026-111497 in Google's Brotli compression library allows unauthenticated attackers to corrupt decoder state, potentially exposing memory, causing den…

🔗 https://www.verisq.ai/intelligence/cisa-kev-cve-2026-111497-google-brotli-google-brotli-unchecked-return-value-vulnerability-71768

⚠️ Windows Administrator Protection Bypassed via UI Access Token Abuse

🔗 https://www.verisq.ai/intelligence/bypassing-administrator-protection-by-abusing-ui-access-71786

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🛡️ Which of your controls does each of these touch? Continuous evidence is what makes an audit defensible.

📖 View all → https://www.verisq.ai/vulnerabilities

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