CVE

CVE-2026-42897

Microsoft Exchange Server Cross-Site Scripting Vulnerability

Microsoft · Microsoft

Date added (CISA)

2026-05-15

Remediation due

2026-05-29

Known ransomware use

Not indicated

Remediation priority

P2 — past CISA due date

Associated with

Related to

Lazarus Group (TraderTraitor cluster) / APT38 / BlueNoroff · SPECTREcampaignCorrelated cluster2026-09-16
DysphoriacampaignCorrelated cluster2026-08-24

ATT&CK mapping

No ATT&CK mapping yet

The CTID Mappings Explorer hasn't published an exploitation/impact technique mapping for this CVE yet.