Weekly intelligence brief · Government
Government Cybersecurity Weekly Intelligence Brief — week ending 2026-09-21
47 stories reviewed · 3 critical
Summary
47 stories affecting government tracked in the last seven days, 3 rated critical.
Leading items
- Cisco security advisory (AV26-921) — Canadian Centre for Cyber Security
- CVE-2026-76461: Critical Cisco Secure Email Gateway Vulnerability Exploited in the Wild — Rapid7 Blog
- CISA Flags Three Linux Kernel Vulnerabilities Exploited in the Wild — The Hacker News
This edition covers government only. Newly exploited vulnerabilities appear here when they were reported in coverage of this industry; the general weekly brief carries the full CISA catalogue for the same period.
Every item below links to its original source. Times are UTC.
Technical analysis
Fastnexa security experts
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