Known Exploited Vulnerabilities
Top 10 vulnerabilities of the week (Sep 22–28, 2026): 5 actively exploited
This week's 10 most urgent vulnerabilities, including 5 CISA confirmed as actively exploited, ranked from CISA and NIST data.
CISA
BreakingMikroTik RouterOS flaw CVE-2026-67279 is being actively exploited, CISA warns
CISA added the MikroTik RouterOS vulnerability to its Known Exploited Vulnerabilities catalog on September 25, 2026, with a federal remediation deadline of September 28, 2026.
CISA
BreakingMicrosoft SharePoint flaw CVE-2026-65660 is being actively exploited, CISA warns
CISA added the Microsoft SharePoint vulnerability to its Known Exploited Vulnerabilities catalog on September 25, 2026, with a federal remediation deadline of September 28, 2026.
CISA
BreakingWordPress Core flaw CVE-2026-87902 is being actively exploited, CISA warns
CISA added the WordPress Core vulnerability to its Known Exploited Vulnerabilities catalog on September 25, 2026, with a federal remediation deadline of September 28, 2026.
CISA