SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2023-21762

Microsoft Exchange Server Spoofing Vulnerability

HIGH 8.0EPSS 1.55%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Microsoft Exchange Server Spoofing Vulnerability

CVSS 3.1
8.0 HIGHCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
1.55% probability · 74th percentile
CISA KEV
Not listed
Weakness
CWE-502
Affected
microsoft/exchange server
Source
secure@microsoft.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.