CVE-2020-17396

HIGH
8.8
CVSS Score
Published: August 25, 2020 at 08:20 PM UTC
Updated: June 17, 2026 at 02:58 AM UTC
1 product affected across 1 vendorParallels Desktop

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Severity
HIGH8.8
Exploit prediction
EPSS 0.5%

Description

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.4. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the prl_hypervisor module. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Was ZDI-CAN-11217.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 16.0.015.1.4
Affected range stops below 16.0.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCVendor Advisory
https://kb.parallels.com/en/125013
x_refsource_MISCThird Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-1014/

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-190

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