OS command injection in vSphere Replication
Priority LOW 36CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- 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-78.
Summary
vSphere Replication 8.3.x prior to 8.3.1.2, 8.2.x prior to 8.2.1.1, 8.1.x prior to 8.1.2.3 and 6.5.x prior to 6.5.1.5 contain a post-authentication command injection vulnerability which may allow an authenticated admin user to perform a remote code execution.
Why it matters now
EPSS 0.02216 82nd percentileScored 2026-11-07
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 |
|---|---|---|---|---|---|
| — | vSphere Replication | vSphere Replication 8.3.x prior to 8.3.1.2, 8.2.x prior to 8.2.1.1, 8.1.x prior to 8.1.2.3 and 6.5.x prior to 6.5.1.5 | — | No fix listed | CNA |
- vSphere Replication Vendor— Affected vSphere Replication 8.3.x prior to 8.3.1.2, 8.2.x prior to 8.2.1.1, 8.1.x prior to 8.1.2.3 and 6.5.x prior to 6.5.1.5 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:vmware:vsphere_replication:*:*:*:*:*:*:*:* | 6.5.0 to before 6.5.1.5; 8.1.0 to before 8.1.2.3; 8.2.0 to before 8.2.1.1; 8.3.0 to before 8.3.1.2 | Vulnerable | VMware |
- cpe:2.3:a:vmware:vsphere_replication:*:*:*:*:*:*:*:* Versions 6.5.0 to before 6.5.1.5; 8.1.0 to before 8.1.2.3; 8.2.0 to before 8.2.1.1; 8.3.0 to before 8.3.1.2 Vulnerable ·VMware
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-21976
- 2026-10-03 Alias added: GHSA-wcgq-jgx4-vjfw
References
Sources
- CVE-2021-21976 · CVE Program
- CVE-2021-21976 · NVD
- FIRST EPSS
- GHSA-wcgq-jgx4-vjfw · GitHub Advisory Database · CC BY 4.0
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