Weekly Cyber Intel Brief | 2025-12-12

Weekly Cyber Intel Brief: Week Ending 2025-12-12

PressContact Blog · 1 minute read

This edition tracks the week’s highest-impact cybersecurity and AI-security developments, selected for relevance to security, technology, and communications leaders.

This issue highlights critical zero-day patches from Microsoft and a CVSS 10.0 vulnerability in React Server Components, alongside high-profile editorial appointments at The Wall Street Journal, NBC News, and The New York Times.

Editorial note: None. All records verified against primary sources and exclusion ledger.

Sources - [Microsoft Patch Tuesday Addresses 57 Vulnerabilities, Including Actively Exploited Zero-Day](https://www.bleepingcomputer.com/news/microsoft/microsoft-december-2025-patch-tuesday-fixes-3-zero-days-57-flaws) - [CISA Warns of Pro-Russia Hacktivists Targeting Global Critical Infrastructure](https://www.cisa.gov/news-events/cybersecurity-advisories/aa25-343a) - [CISA Adds Critical React Server Components Vulnerability to Known Exploited Catalog](https://www.cisa.gov/news-events/alerts/2025/12/05/cisa-adds-one-known-exploited-vulnerability-catalog)