Vulnerability Description
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.2-49151. 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 Parallels Tools component. 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 arbitrary code in the context of the kernel on the target guest system. Was ZDI-CAN-12791.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Parallels | Parallels Desktop | 16.1.2-49151 |
Related Weaknesses (CWE)
References
- https://kb.parallels.com/en/125013Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-433/Third Party AdvisoryVDB Entry
- https://kb.parallels.com/en/125013Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-433/Third Party AdvisoryVDB Entry
FAQ
What is CVE-2021-31426?
CVE-2021-31426 is a vulnerability with a CVSS score of 8.8 (HIGH). This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.2-49151. An attacker must first obtain the ability to execute low-privileged code o...
How severe is CVE-2021-31426?
CVE-2021-31426 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-31426?
Check the references section above for vendor advisories and patch information. Affected products include: Parallels Parallels Desktop.