Outlook
CVE-2019-1084
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK
2 techniques across 2 tactics: Collection, Discovery The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. |
| Exploit ScenarioDerived | A remote attacker could access sensitive data that should not be disclosed by sending crafted requests to the affected application. |
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Alert meAnalysisAI
An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having non-printable characters. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. 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'. Affected products include: Microsoft Exchange Server, Microsoft Lync, Microsoft Lync Basic, Microsoft Mail And Calendar, Microsoft Office.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
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'.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)NVD
Command injection in the Windows Shell lets remote, unauthenticated attackers bypass a Windows security feature and then
Microsoft Outlook Security Feature Bypass Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely
Double free vulnerability in Microsoft Outlook 2007 SP3 and 2010 SP1 and SP2 allows remote attackers to execute arbitrar
A remote code execution vulnerability exists in Microsoft Office when the software fails to properly handle objects in m
A library injection vulnerability exists in Microsoft Outlook 16.83.3 for macOS. Rated critical severity (CVSS 9.1), thi
Microsoft Outlook Remote Code Execution Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely ex
Microsoft Office 2007 SP2, Microsoft Office Word Viewer, Microsoft Office 2010 SP2, Microsoft Office 2013 SP1 and RT SP1
Microsoft Outlook 2010 SP2, 2013 SP1, 2013 RT SP1, and 2016 allows remote attackers to execute arbitrary code via a craf
A remote code execution vulnerability exists in the way Microsoft Office software parses specially crafted email message
Microsoft Outlook Remote Code Execution Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely ex
SpotOutlook 1.2.6 contains a denial of service vulnerability in the registration name input field that allows attackers
Microsoft Outlook 2007 SP3, Outlook 2010 SP2, Outlook 2013 SP1, Outlook 2013 RT SP1, and Outlook 2016 as packaged in Mic
GitHub PoC
Exploit-DB