Improper input validation in VMware View Planner
Priority CRITICAL 87CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-862.
Summary
VMware View Planner 4.x prior to 4.6 Security Patch 1 contains a remote code execution vulnerability. Improper input validation and lack of authorization leading to arbitrary file upload in logupload web application. An unauthorized attacker with network access to View Planner Harness could upload and execute a specially crafted file leading to remote code execution within the logupload container.
Why it matters now
EPSS 0.99005 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | VMware View Planner | VMware View Planner 4.x prior to 4.6 Security Patch 1 | — | No fix listed | CNA |
- VMware View Planner Vendor— Affected VMware View Planner 4.x prior to 4.6 Security Patch 1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-21978
- 2026-10-03 Alias added: GHSA-cmcw-cw5c-rg22
References
Sources
- CVE-2021-21978 · CVE Program
- CVE-2021-21978 · NVD
- FIRST EPSS
- GHSA-cmcw-cw5c-rg22 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences