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Tech Pulse Daily - December 4, 2025

Dillip Chowdary

Dillip Chowdary

Tech Entrepreneur & Innovator

December 4, 2025 | 7 min read

SECURITY ALERT: React2Shell Active Exploitation

China state-nexus threat groups (Earth Lamia, Jackpot Panda) are actively exploiting CVE-2025-55182 within hours of disclosure. If you use React 19.x or Next.js 15.x/16.x with App Router, patch immediately.

Today's Top Highlights

  • SECURITY: React2Shell (CVE-2025-55182) actively exploited by China-nexus APT groups
  • Gemini 3.0: Google Deep Think rolling out to Ultra subscribers with parallel reasoning
  • Harvey AI: Legal AI startup confirms $8B valuation after $160M Andreessen Horowitz round
  • Black Forest Labs: Image generation startup raises $300M Series B at $3.25B valuation
  • AWS re:Invent 2025 Day 4: Kiro virtual developer and DevOps Agent unveiled

Google Gemini 3.0 Deep Think Rolling Out to Ultra Subscribers

Google announced that Gemini 3.0 Deep Think is starting to roll out to AI Ultra subscribers, representing the company's most advanced reasoning mode capable of extended thinking and parallel reasoning streams.

  • Capability: Thinks for longer and generates multiple parallel streams of thought simultaneously
  • Availability: Early, limited access for Google AI Ultra subscribers
  • Approach: Mimics how humans brainstorm to tackle complex problems
  • Competition: Competes with Claude's extended thinking and OpenAI's o1 reasoning

View Gemini release notes →

Harvey Legal AI Confirms $8 Billion Valuation

Legal AI startup Harvey has confirmed closing a funding round led by Andreessen Horowitz that values the company at $8 billion, making it one of the most valuable AI-focused legal tech companies.

  • Funding: $160 million raised in latest round led by a16z
  • Valuation: $8 billion - among the highest for legal AI startups
  • Focus: AI-powered legal research, contract analysis, and document review
  • Market: Targeting $900B+ global legal services industry

Read Harvey funding announcement →

Black Forest Labs Raises $300M for AI Image Generation

Black Forest Labs, the AI image generation startup behind high-fidelity models, has secured a massive $300 million Series B funding round at a $3.25 billion valuation.

  • Funding: $300 million Series B at $3.25 billion valuation
  • Technology: High-fidelity image generation models competing with DALL-E and Midjourney
  • Use Cases: Creative tools, enterprise imaging, content generation
  • Market Position: Emerging as major player in generative AI imagery

React2Shell CVE-2025-55182 Under Active Exploitation

Within hours of public disclosure, Amazon threat intelligence teams observed active exploitation of the React2Shell vulnerability (CVE-2025-55182) by multiple China state-nexus threat groups.

  • CVSS Score: 10.0 (Maximum Critical) - unsafe deserialization in React Server Components
  • Threat Actors: Earth Lamia, Jackpot Panda (China-nexus APT groups)
  • Affected: React 19.x, Next.js 15.x/16.x using App Router
  • Patches: React 19.0.1, 19.1.2, 19.2.1; Next.js 16.0.7, 15.5.7, and others

Read React security advisory →

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