CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.4. See the original NVD description below for full technical details.
CVE
CVE-2021-20247
Severity
HIGH
CVSS
7.4
EPSS
1.88%
Original NVD Description
A flaw was found in mbsync before v1.3.5 and v1.4.1. Validations of the mailbox names returned by IMAP LIST/LSUB do not occur allowing a malicious or compromised server to use specially crafted mailbox names containing '..' path components to access data outside the designated mailbox on the opposite end of the synchronization channel. The highest threat from this vulnerability is to data confidentiality and integrity.
Related CVEs
Other vulnerabilities affecting the same vendor(s)