MEDIUM
An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having non-printable characters
Published Jul 15, 2019
6.5
MEDIUMCVSS 3.0
EPSS 5.33%
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'.
Affected products
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version 2010 Service Pack 3StatusaffectedConstraints-
- Version
-
- Version Cumulative Update 23StatusaffectedConstraints-
- Version
-
- Version Cumulative Update 12StatusaffectedConstraints-
- Version Cumulative Update 13StatusaffectedConstraints-
- Version
-
- Version Cumulative Update 1StatusaffectedConstraints-
- Version Cumulative Update 2StatusaffectedConstraints-
- Version
-
- Version 2013 Service Pack 1 (32-bit)StatusaffectedConstraints-
- Version 2013 Service Pack 1 (64-bit)StatusaffectedConstraints-
- Version
-
- Version 2013 Service Pack 1 (32-bit)StatusaffectedConstraints-
- Version 2013 Service Pack 1 (64-bit)StatusaffectedConstraints-
- Version
-
- Version 2013 RT Service Pack 1StatusaffectedConstraints-
- Version 2013 Service Pack 1 (32-bit editions)StatusaffectedConstraints-
- Version 2013 Service Pack 1 (64-bit editions)StatusaffectedConstraints-
- Version 2016 (32-bit edition)StatusaffectedConstraints-
- Version 2016 (64-bit edition)StatusaffectedConstraints-
- Version 2016 for MacStatusaffectedConstraints-
- Version 2019 for 32-bit editionsStatusaffectedConstraints-
- Version 2019 for 64-bit editionsStatusaffectedConstraints-
- Version 2019 for MacStatusaffectedConstraints-
- Version
-
- Version 2010 Service Pack 2 (32-bit editions)StatusaffectedConstraints-
- Version 2010 Service Pack 2 (64-bit editions)StatusaffectedConstraints-
- Version 2013 Service Pack 1 (32-bit editions)StatusaffectedConstraints-
- Version 2013 Service Pack 1 (64-bit editions)StatusaffectedConstraints-
- Version 2016 (32-bit edition)StatusaffectedConstraints-
- Version 2016 (64-bit edition)StatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version 32-bit SystemsStatusaffectedConstraints-
- Version 64-bit SystemsStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version 2016 (32-bit)StatusaffectedConstraints-
- Version 2016 (64-bit)StatusaffectedConstraints-
- Version
-
- Version 2016 (32-bit)StatusaffectedConstraints-
- Version 2016 (64-bit)StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Mail and Calendar | n/a |
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| Microsoft | Microsoft Exchange Server | n/a |
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| Microsoft | Microsoft Exchange Server 2013 | n/a |
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| Microsoft | Microsoft Exchange Server 2016 | n/a |
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| Microsoft | Microsoft Exchange Server 2019 | n/a |
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| Microsoft | Microsoft Lync | n/a |
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| Microsoft | Microsoft Lync Basic | n/a |
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| Microsoft | Microsoft Office | n/a |
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| Microsoft | Microsoft Outlook | n/a |
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| Microsoft | Microsoft Outlook for Android | n/a |
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| Microsoft | Office 365 ProPlus | n/a |
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| Microsoft | Outlook for iOS | n/a |
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| Microsoft | Skype for Business | n/a |
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| Microsoft | Skype for Business Basic | n/a |
|
OR
- 2010
- 2013
- 2016
- 2016
- 2016
- 2016
- 2013
- 2013
- n/a
- 2010
- 2013
- 2016
- 2016
- 2019
- 2019
- n/a
- n/a
- 2013
- 2016
- 2016
- 2016
- 2016
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
6.5 MEDIUM NVD
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
4.0 MEDIUM NVD
AV:N/AC:L/Au:S/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
5.33% 0.05328
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.05328
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 5.33% (0.05328) | 92.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.33% (0.05328) | 91.54th | v5 (v2026.06.15) |
| Dec 28, 2025 | 9.03% (0.09029) | 92.36th | v4 (v2025.03.14) |
| Dec 27, 2025 | 6.37% (0.06367) | 90.73th | v4 (v2025.03.14) |
| Nov 3, 2025 | 9.03% (0.09029) | 92.30th | v4 (v2025.03.14) |
| Oct 28, 2025 | 7.46% (0.07463) | 91.34th | v4 (v2025.03.14) |
| Oct 27, 2025 | 6.11% (0.06114) | 90.39th | v4 (v2025.03.14) |
| Oct 1, 2025 | 7.82% (0.07824) | 91.67th | v4 (v2025.03.14) |
| Jul 30, 2025 | 6.42% (0.06416) | 90.66th | v4 (v2025.03.14) |
| Mar 30, 2025 | 7.96% (0.07958) | 91.26th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.72% (0.10717) | 88.82th | v4 (v2025.03.14) |
| Mar 19, 2025 | 7.96% (0.07958) | 91.01th | v4 (v2025.03.14) |
| Mar 17, 2025 | 18.74% (0.18740) | 94.80th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.26% (0.00264) | 66.53th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.53% (0.00531) | 76.37th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.53% (0.00531) | 74.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.75% (0.00752) | 78.11th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.38% (0.01376) | 71.76th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.15% (0.01150) | 57.39th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.29% (0.02288) | 58.26th | v2 (v2022.01.01) |
| Feb 3, 2022 | 17.64% (0.17642) | 92.83th | v1 |
| Jan 6, 2022 | 17.64% (0.17642) | 92.74th | v1 |
| Jan 5, 2022 | 4.56% (0.04557) | 86.73th | v5 (v2026.06.15) |
| Apr 14, 2021 | 4.56% (0.04557) | 0.00th | v1 |
Weaknesses (1)
References (1)
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1084 x_refsource_MISCPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1084 | x_refsource_MISCPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Jul 15, 2019
Updated Aug 4, 2024
Reserved Nov 26, 2018
Link CVE-2019-1084
CISA Vulnrichment
Updated n/a