CVE-2021-31427

MEDIUM

Parallels Desktop 15.1.5-47309 - Information Disclosure via Open Tools Gate Race Condition

Title source: llm
STIX 2.1

Description

This vulnerability allows local attackers to disclose sensitive information on affected installations of Parallels Desktop 15.1.5-47309. An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the Open Tools Gate component. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-13082.

References (2)

Core 2
Core References
Vendor Advisory x_refsource_misc
https://kb.parallels.com/en/125013
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-21-435/

Scores

CVSS v3 5.6
EPSS 0.0028
EPSS Percentile 19.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Details

CWE
CWE-367 CWE-667
Status published
Products (1)
parallels/parallels_desktop 15.1.5-47309
Published Apr 29, 2021
Tracked Since Feb 18, 2026