Apache ActiveMQ

In Q1 2026, vulnerability registrations continued to rise, heavily influenced by AI-assisted discovery tools. Threat actors and APT groups actively exploited a mix of legacy and newly discovered vulnerabilities across Windows, Linux, and Microsoft Office, frequently utilizing C2 frameworks like Metasploit and Sliver to bypass authentication and gain initial access.

2026-05-133 minCISAhigh

CISA has added CVE-2026-34197, an improper input validation vulnerability in Apache ActiveMQ, to its Known Exploited Vulnerabilities (KEV) Catalog due to evidence of active exploitation. Organizations are strongly urged to prioritize patching and remediation to reduce their exposure to cyberattacks.