VULNERABILITY INTELLIGENCE

CVE-2021-26857

CVSS score7.8 HIGH
EPSS probability95.76%
CISA KEVKnown exploited vulnerability
Published2021-03-03
Last modified2026-08-19
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Known Exploited Vulnerability

Microsoft Exchange Server Remote Code Execution Vulnerability

Vendor / product: Microsoft / Exchange Server

Description

Microsoft Exchange Server Remote Code Execution Vulnerability

Weakness classification

  • CWE-502: Deserialization of Untrusted Data

Primary references