SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-0588

An information disclosure vulnerability exists when the Microsoft Exchange PowerShell API grants calendar contributors more view permissions than intended, aka "Microsoft Exchange Information Disclosure Vulnerability." This affects Microsoft Exchange…

MEDIUM 6.5EPSS 4.63%

Does this matter?

Lower severity and a low EPSS score (4.63%). Track it; it rarely justifies an emergency change on its own.

Description

An information disclosure vulnerability exists when the Microsoft Exchange PowerShell API grants calendar contributors more view permissions than intended, aka "Microsoft Exchange Information Disclosure Vulnerability." This affects Microsoft Exchange Server.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
4.63% probability · 92th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-732
Affected
microsoft/exchange server
Source
secure@microsoft.com
EPSS trend
0%3%5%27 October 2026: 4.63%27 October 202627 October 2026

EPSS 4.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.