CVE-2019-1204: microsoft microsoft office 2019 Improper Input Validation

Vulnerability summary

CVE-2019-1204 is a medium (CVSS 4.3) Improper Input Validation vulnerability in microsoft microsoft office 2019. EPSS estimates a 4.42% chance of exploitation in the next 30 days, higher than 91.2% of scored vulnerabilities.

Timeline

1. 14-08-2019
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

An elevation of privilege vulnerability exists when Microsoft Outlook initiates processing of incoming messages without sufficient validation of the formatting of the messages. An attacker who successfully exploited the vulnerability could attempt to force Outlook to load a local or remote message store (over SMB). To exploit the vulnerability, the attacker could send a specially crafted email to a victim. Outlook would then attempt to open a pre-configured message store contained in the email upon receipt of the email. This update addresses the vulnerability by ensuring Office fully validates incoming email formatting before processing message content.

• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.