CVE-2020-17392
mediumpriority · track · 35EPSS 0.005 · 45 %ileEUUSEPSS · scored 2026-10-27
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.3-47255. 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 handler for HOST_IOCTL_SET_KERNEL_SYMBOLS in the prl_hypervisor kext. The issue results from the lack of proper validation of a user-supplied value prior to dereferencing it as a pointer. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Was ZDI-CAN-10519.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–8.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
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references (8)
External citations — patches, advisories, analysis.
- http://www.nsfocus.net/vulndb/48329cnnvd
- https://kb.parallels.com/en/125013cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-17392cnnvd
- https://www.zerodayinitiative.com/advisories/ZDI-20-1010/cnnvd
- https://kb.parallels.com/en/125013enisa_euvd
- https://www.zerodayinitiative.com/advisories/ZDI-20-1010/enisa_euvd
- https://kb.parallels.com/en/125013Vendor Advisorynvd
- https://www.zerodayinitiative.com/advisories/ZDI-20-1010/Third Party AdvisoryVDB Entrynvd
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