CVE-2019-1084
mediumpriority · track · 28EPSS 0.053 · 93 %ileEURUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.5–6.5
weaknesses
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affected products (69)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
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references (9)
External citations — patches, advisories, analysis.
- http://office.microsoft.com/en-us/exchange/cnnvd
- http://www.microsoft.comcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-1084cnnvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1084cnnvd
- https://portal.msrc.microsoft.com/zh-CN/security-guidance/advisory/CVE-2019-1084Patchcnnvd
- https://vigilance.fr/vulnerability/Skype-for-Business-information-disclosure-29726cnnvd
- https://www.securityfocus.com/bid/108929cnnvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1084enisa_euvd
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