CVE-2021-31421
low-risk
Published 2021-04-29
This vulnerability allows local attackers to delete arbitrary files 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 delete arbitrary files in the context of the hypervisor. Was ZDI-CAN-12129.
Do I need to act?
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0.13% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.0/10
Medium
LOCAL
/ LOW complexity
Affected Products (1)
Affected Vendors
References (4)
Vendor Advisory
https://kb.parallels.com/en/125013
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-425/
Vendor Advisory
https://kb.parallels.com/en/125013
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-425/
26
/ 100
low-risk
Severity
20/34 · Moderate
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal