CVE-2020-3991
Last modified
CVE-2020-3991 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. VMware Horizon Client for Windows (5.x before 5.5.0) contains a denial-of-service vulnerability due to a file system access control issue during install time. Successful exploitation of this issue may allow an attacker to overwrite certain admin privileged files through a symbolic link attack at install time. EPSS estimates a 0.34% chance of exploitation in the next 30 days.
Description
VMware Horizon Client for Windows (5.x before 5.5.0) contains a denial-of-service vulnerability due to a file system access control issue during install time. Successful exploitation of this issue may allow an attacker to overwrite certain admin privileged files through a symbolic link attack at install time. This will result into a denial-of-service condition on the machine where Horizon Client for Windows is installed.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vmware | Horizon Client | >= 5.0.0, < 5.5.0 |
References
- https://www.vmware.com/security/advisories/VMSA-2020-0022.htmlPatch, Vendor Advisory
- https://www.vmware.com/security/advisories/VMSA-2020-0022.htmlPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-3991?
How severe is CVE-2020-3991?
How do I fix CVE-2020-3991?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-3985The SD-WAN Orchestrator 3.3.2 prior to 3.3.2 P3 and 3.4.x pr…8.8
- CVE-2020-3986VMware Workstation (15.x) and Horizon Client for Windows (5.…6.1
- CVE-2020-3987VMware Workstation (15.x) and Horizon Client for Windows (5.…6.1
- CVE-2020-3988VMware Workstation (15.x) and Horizon Client for Windows (5.…6.1
- CVE-2020-3989VMware Workstation (15.x) and Horizon Client for Windows (5.…3.3
- CVE-2020-3990VMware Workstation (15.x) and Horizon Client for Windows (5.…6.5
- CVE-2020-3992OpenSLP as used in VMware ESXi (7.0 before ESXi_7.0.1-0.0.16…9.8
- CVE-2020-3993VMware NSX-T (3.x before 3.0.2, 2.5.x before 2.5.2.2.0) cont…5.9
- CVE-2020-3994VMware vCenter Server (6.7 before 6.7u3, 6.6 before 6.5u3k) …7.4
- CVE-2020-3995In VMware ESXi (6.7 before ESXi670-201908101-SG, 6.5 before …5.3
- CVE-2020-3996Velero (prior to 1.4.3 and 1.5.2) in some instances doesn’t …5.5
- CVE-2020-3997VMware Horizon Server (7.x prior to 7.10.3 or 7.13.0) contai…5.4
Are you affected by CVE-2020-3991?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
