CISA Tracking Exploited Vulnerabilities
CISA's Known Exploited Vulnerabilities catalog has been running hot through April. On the 14th, the agency added six confirmed active-exploitation flaws across Fortinet, Microsoft, and Adobe — three vendors whose software effectively forms the connective tissue of enterprise computing, covering network perimeters, productivity suites, and creative infrastructure in a single sweep. These were not theoretical vulnerabilities waiting in a researcher's notebook. They were actively being used. Then, a week later on the 21st, CISA added eight more, this time setting formal federal remediation deadlines stretching into April and May 2026. Fourteen flaws in roughly a week, across some of the most widely deployed software on the planet, with the federal government now on a compliance clock.
If confirmed, here is what this means. The pace of additions suggests threat actors are working through a backlog of known weaknesses faster than organisations are patching them — and CISA is essentially publishing a roadmap of attacker priorities. The April-May 2026 deadlines impose mandatory timelines on federal agencies, but the real pressure lands on the broader enterprise ecosystem that mirrors federal infrastructure. Fortinet vulnerabilities in particular tend to sit at network edges, meaning successful exploitation opens internal environments rather than just compromising a single endpoint. Adobe and Microsoft flaws widen the surface further. The compounding effect here is not just the number of vulnerabilities — it is that they span perimeter, endpoint, and creative workflow simultaneously, leaving almost no category of enterprise software untouched.
Watch for independent security researchers or additional outlets confirming active exploitation of the eight flaws added on the 21st — that would sharpen the picture considerably. Any observed uptick in incident reports tied to these specific CVEs would move this story from background intelligence to operational concern.
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