CVE-2020-17400 json
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.4.
published 2020-08-25 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-9353
- cvss
- 8.8
- 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 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 kext. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the hypervisor. Was ZDI-CAN-11304.
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 | 8.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVD | 2.0 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Parallels Desktop
Classification
- Weakness
-
- CWE-129 Improper Validation of Array Index
References
-
kb.parallels.com
/en/125013
vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-20-1018/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2020-17400
- NVD CVE-2020-17400
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