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U.S. CISA adds Microsoft and Adobe flaws to its Known Exploited Vulnerabilities catalog

ID: 2e2152a3-4b71-5455-84d5-bbef36b96586

STIX ID: report--2e2152a3-4b71-5455-84d5-bbef36b96586

Feed Name: Security Affairs

Threat Score
70/100

Date Published: 2026-05-21

Date Updated: 2026-05-22

Author: Pierluigi Paganini

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CISA added seven vulnerabilities — including several critical Microsoft and Adobe CVEs (RCEs, use-after-free, and Defender elevation/DoS issues) — to its Known Exploited Vulnerabilities (KEV) catalog and ordered federal agencies to remediate them by June 3, 2026; the report notes high CVSS scores and that an APT (GREF) exploited one Internet Explorer flaw as a zero-day in targeted attacks.

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