VULNERABILITY INTELLIGENCE

CVE-2026-21511

CVSS score7.5 HIGH
EPSS probability3.97%
CISA KEVNot currently listed
Published2026-02-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.

Weakness classification

  • CWE-502: Deserialization of Untrusted Data

Primary references