Vulnerability identifier: #VU20267

Vulnerability risk: Medium

CVSSv3.1: 5.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1204

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft Outlook
Client/Desktop applications / Office applications
Microsoft Office
Client/Desktop applications / Office applications

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to insufficient validation of incoming email messages. A remote attacker can create a specially crafted email message and attempt to force Outlook to load a local or remote message store (over SMB).

Mitigation
Install update from vendor's website.

Vulnerable software versions

Microsoft Outlook:

Microsoft Office: 2019, 365 ProPlus

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1204

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.