CVE-2021-27278

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.1-49141. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the Toolgate component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the current user on the host system. Was ZDI-CAN-12130.

• CWE-22

• https://kb.parallels.com/en/125013Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-21-412/Third Party Advisory, VDB Entry
• https://kb.parallels.com/en/125013Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-21-412/Third Party Advisory, VDB Entry

Published

Apr 22, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-27272This vulnerability allows remote attackers to delete arbitra…7.1
• CVE-2021-27273This vulnerability allows remote attackers to execute arbitr…8.8
• CVE-2021-27274This vulnerability allows remote attackers to execute arbitr…9.8
• CVE-2021-27275This vulnerability allows remote attackers to disclose sensi…8.3
• CVE-2021-27276This vulnerability allows remote attackers to delete arbitra…7.1
• CVE-2021-27277This vulnerability allows local attackers to escalate privil…7.8
• CVE-2021-27279MyBB before 1.8.25 allows stored XSS via nested [email] tags…5.4
• CVE-2021-27280OS Command injection vulnerability in mblog 3.5.0 allows att…7.8
• CVE-2021-27285An issue was discovered in Inspur ClusterEngine v4.0 that al…8.4
• CVE-2021-27288Cross Site Scripting (XSS) in X2Engine X2CRM v7.1 allows rem…6.1
• CVE-2021-27289A replay attack vulnerability was discovered in a Zigbee sma…9.1
• CVE-2021-27290ssri 5.2.2-8.0.0, fixed in 8.0.1, processes SRIs using a reg…7.5