Outlook Web Access — Cyber Threats, Attacks & Incidents

Threat entity extracted from intelligence sources

Frequency
17
occurrences
First Seen
October 29, 2025
Last Seen
July 22, 2026

Outlook Web Access is a technology platform tracked across 11 threat clusters and 17 intelligence report mentions on ThreatCluster. First observed October 29, 2025; most recent activity July 22, 2026.

Related Threat Clusters

Recent Intelligence Reports

  • The July 2026 Security Update Review — www.zerodayinitiative.com · July 22, 2026
  • The July 2026 Security Update Review — Thezdi · July 14, 2026
  • Microsoft patches actively exploited Exchange Server XSS vulnerability — Feeds.4Sysops · June 11, 2026
  • Microsoft patches Exchange Server zero — Bleepingcomputer · June 10, 2026
  • Microsoft June 2026 Patch Tuesday fixes 6 zero-days, 200 flaws — Bleepingcomputer · June 9, 2026
  • External Remote Services — attack.mitre.org · June 3, 2026
  • Microsoft warns of active exploitation of new Exchange Server zero-day vulnerability — Scworld · May 15, 2026
  • Cisco, Canvas, Microsoft, Exchange 0-Days, NPM Backdoors, GPT-5.5 and more… – SWN #581 — Scworld · May 15, 2026

CVSS v3.1 Breakdown