Ubuntu GStreamer Security Update: Audit and Patch USN-8863-1
Audit and patch Ubuntu GStreamer flaws in AVI, FLAC, MP4 and MOV parsing with fixed package versions, verification commands, and safe rollout steps.
Microsoft SharePoint Zero-Day CVE-2026-58644: CISA KEV, Attack Chain & Remediation
CVE-2026-58644: Critical SharePoint RCE zero-day (CVSS 9.8) on CISA KEV July 16, 2026. Full 4-CVE attack chain, IOC detection signatures, and step-by-step remediation guide for security teams.
