CVE-2020-17391 json
This vulnerability allows local attackers to disclose information on affected installations of Parallels Desktop 15.1.3-47255.
published 2020-08-25 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-9344
- cvss
- 6.5
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
This vulnerability allows local attackers to disclose information 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_INIT_HYPERVISOR in the prl_hypervisor kext. The issue results from the exposure of dangerous method or function to the unprivileged user. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel. Was ZDI-CAN-10518.
Patch / fix
- parallels parallels_desktop 16.0.0
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 6.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- Parallels Desktop
Classification
- Weakness
-
- CWE-749 Exposed Dangerous Method or Function
References
-
kb.parallels.com
/en/125013
vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-20-1009/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2020-17391
- NVD CVE-2020-17391
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