# An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having non-printable characters.

CVE record · `CVE-2019-1084`

- **Identifiers:** `CVE-2019-1084`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** microsoft
- **Technologies:** [Microsoft Exchange Server](https://agentprime.io/advisories/technology/microsoft-exchange-server.md) · [Microsoft Outlook](https://agentprime.io/advisories/technology/microsoft-outlook.md) · [Microsoft Office](https://agentprime.io/advisories/technology/microsoft-office.md) · [Microsoft Lync](https://agentprime.io/advisories/technology/microsoft-lync.md) · [Microsoft Lync Basic](https://agentprime.io/advisories/technology/microsoft-lync-basic.md) · [Microsoft Outlook for Android](https://agentprime.io/advisories/technology/microsoft-outlook-for-android.md) · [Microsoft Skype for Business](https://agentprime.io/advisories/technology/microsoft-skype-for-business.md) · [Microsoft Skype for Business Basic](https://agentprime.io/advisories/technology/microsoft-skype-for-business-basic.md) · [Microsoft Office 365 ProPlus](https://agentprime.io/advisories/technology/microsoft-office-365-proplus.md) · [Microsoft Exchange Server 2016](https://agentprime.io/advisories/technology/microsoft-exchange-server-2016.md) · [Microsoft Exchange Server 2019](https://agentprime.io/advisories/technology/microsoft-exchange-server-2019.md) · [Microsoft Exchange Server 2013](https://agentprime.io/advisories/technology/microsoft-exchange-server-2013.md) · [Microsoft Mail and Calendar](https://agentprime.io/advisories/technology/microsoft-mail-and-calendar.md) · [Microsoft Outlook for iOS](https://agentprime.io/advisories/technology/microsoft-outlook-for-ios.md)
- **Published:** 15 Jul 2019
- **Updated:** 4 Aug 2024
- **Reviewed by a person:** No

Published by the CVE Program (CNA: microsoft) at 15 Jul 2019, 18:56 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Microsoft. Product: Microsoft Exchange Server.
  - affected: `2010 Service Pack 3`
- Vendor: Microsoft. Product: Microsoft Outlook.
  - affected: `2010 Service Pack 2 (32-bit editions)`
  - affected: `2010 Service Pack 2 (64-bit editions)`
  - affected: `2016 (32-bit edition)`
  - affected: `2016 (64-bit edition)`
  - affected: `2013 Service Pack 1 (32-bit editions)`
  - affected: `2013 Service Pack 1 (64-bit editions)`
- Vendor: Microsoft. Product: Microsoft Office.
  - affected: `2013 Service Pack 1 (32-bit editions)`
  - affected: `2013 Service Pack 1 (64-bit editions)`
  - affected: `2013 RT Service Pack 1`
  - affected: `2016 for Mac`
  - affected: `2016 (32-bit edition)`
  - affected: `2016 (64-bit edition)`
  - affected: `2019 for 32-bit editions`
  - affected: `2019 for 64-bit editions`
  - affected: `2019 for Mac`
- Vendor: Microsoft. Product: Microsoft Lync.
  - affected: `2013 Service Pack 1 (32-bit)`
  - affected: `2013 Service Pack 1 (64-bit)`
- Vendor: Microsoft. Product: Microsoft Lync Basic.
  - affected: `2013 Service Pack 1 (32-bit)`
  - affected: `2013 Service Pack 1 (64-bit)`
- Vendor: Microsoft. Product: Microsoft Outlook for Android.
  - affected: `unspecified`
- Vendor: Microsoft. Product: Skype for Business.
  - affected: `2016 (32-bit)`
  - affected: `2016 (64-bit)`
- Vendor: Microsoft. Product: Skype for Business Basic.
  - affected: `2016 (32-bit)`
  - affected: `2016 (64-bit)`
- Vendor: Microsoft. Product: Office 365 ProPlus.
  - affected: `32-bit Systems`
  - affected: `64-bit Systems`
- Vendor: Microsoft. Product: Microsoft Exchange Server 2016.
  - affected: `Cumulative Update 12`
  - affected: `Cumulative Update 13`
- Vendor: Microsoft. Product: Microsoft Exchange Server 2019.
  - affected: `Cumulative Update 1`
  - affected: `Cumulative Update 2`
- Vendor: Microsoft. Product: Microsoft Exchange Server 2013.
  - affected: `Cumulative Update 23`
- Vendor: Microsoft. Product: Mail and Calendar.
  - affected: `unspecified`
- Vendor: Microsoft. Product: Outlook for iOS.
  - affected: `unspecified`

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.053, the 92nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 15 Jul 2019. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2019-1084](https://www.cve.org/CVERecord?id=CVE-2019-1084)
- [NVD: CVE-2019-1084](https://nvd.nist.gov/vuln/detail/CVE-2019-1084)

### References from the CNA

- <https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1084>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2019-1084>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2019-1084/>. Everything for agents: <https://agentprime.io/llms.txt>.
