CVE-2019-1084
An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having non-printable characters.
Does this matter?
Lower severity and a low EPSS score (5.33%). Track it; it rarely justifies an emergency change on its own.
Description
An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having non-printable characters. An authenticated attacker could exploit this vulnerability by creating entities with invalid display names, which, when added to conversations, remain invisible. This security update addresses the issue by validating display names upon creation in Microsoft Exchange, and by rendering invalid display names correctly in Microsoft Outlook clients., aka 'Microsoft Exchange Information Disclosure Vulnerability'.
- CVSS 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 5.33% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- microsoft/exchange server · microsoft/lync · microsoft/lync basic · microsoft/mail and calendar · microsoft/office · microsoft/office 365 proplus · microsoft/outlook · microsoft/skype for business · microsoft/skype for business basic
- Source
- secure@microsoft.com
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1084Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1084Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.