CVE-2020-3951: vmware horizon_client Out-of-bounds Write
Vulnerability summary
CVE-2020-3951 is a low (CVSS 3.8) Out-of-bounds Write vulnerability in vmware horizon_client. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.4% of scored vulnerabilities.
Timeline
- 17-03-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
VMware Workstation (15.x before 15.5.2) and Horizon Client for Windows (5.x and prior before 5.4.0) contain a denial-of-service vulnerability due to a heap-overflow issue in Cortado Thinprint. Attackers with non-administrative access to a guest VM with virtual printing enabled may exploit this issue to create a denial-of-service condition of the Thinprint service running on the system where Workstation or Horizon Client is installed.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
0.27%
Chance of exploitation in the next 30 days
Percentile
18%
Versus all other CVEs
30-day change
0.00 pp
From 0.27% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Vmware2 products
- horizon_client≥ 5.0.0, < 5.4.0
- workstation≥ 15.0.0, < 15.5.2
1 vendor · 2 products