Multiple vulnerabilities in Parallels Desktop
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2021-34868 CVE-2021-34867 CVE-2021-34869 |
| CWE-ID | CWE-789 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
Parallels Desktop Operating systems & Components / Operating system package or component |
| Vendor | Parallels |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Uncontrolled Memory Allocation
EUVDB-ID: #VU56890
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-34868
CWE-ID:
CWE-789 - Uncontrolled Memory Allocation
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to uncontrolled memory allocation within the Toolgate component. A local user can escalate privileges and execute arbitrary code in the context of the hypervisor.
MitigationInstall updates from vendor's website.
Vulnerable software versionsParallels Desktop: before 17.0.0 51461
CPE2.3 External linkshttps://www.zerodayinitiative.com/advisories/ZDI-21-1056/
https://kb.parallels.com/125013
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Uncontrolled Memory Allocation
EUVDB-ID: #VU56891
Risk: Low
CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-34867
CWE-ID:
CWE-789 - Uncontrolled Memory Allocation
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to uncontrolled memory allocation within the Toolgate component. A local administrator can escalate privileges and execute arbitrary code in the context of the hypervisor.
MitigationInstall updates from vendor's website.
Vulnerable software versionsParallels Desktop: before 17.0.0 51461
CPE2.3 External linkshttps://www.zerodayinitiative.com/advisories/ZDI-21-1055/
https://kb.parallels.com/125013
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Uncontrolled Memory Allocation
EUVDB-ID: #VU56892
Risk: Low
CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-34869
CWE-ID:
CWE-789 - Uncontrolled Memory Allocation
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to uncontrolled memory allocation within the Toolgate component. A local user can escalate privileges and execute arbitrary code in the context of the hypervisor.
MitigationInstall updates from vendor's website.
Vulnerable software versionsParallels Desktop: before 17.0.0 51461
CPE2.3 External linkshttps://www.zerodayinitiative.com/advisories/ZDI-21-1057/
https://kb.parallels.com/125013
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
