Improper authentication in VMware Carbon Black App Control
Priority MEDIUM 55CWE-287Published · 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-287.
Summary
VMware Carbon Black App Control 8.0, 8.1, 8.5 prior to 8.5.8, and 8.6 prior to 8.6.2 has an authentication bypass. A malicious actor with network access to the VMware Carbon Black App Control management server might be able to obtain administrative access to the product without the need to authenticate.
Why it matters now
EPSS 0.10619 95th 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 |
|---|---|---|---|---|---|
| — | VMware Carbon Black App Control (AppC) | VMware Carbon Black App Control 8.0, 8.1, 8.5 prior to 8.5.8, and 8.6 prior to 8.6.2 | — | No fix listed | CNA |
- VMware Carbon Black App Control (AppC) Vendor— Affected VMware Carbon Black App Control 8.0, 8.1, 8.5 prior to 8.5.8, and 8.6 prior to 8.6.2 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:vmware:carbon_black_app_control:*:*:*:*:*:*:*:* | 8.5 to before 8.5.8; 8.6 to before 8.6.2 | Vulnerable | VMware |
| cpe:2.3:a:vmware:carbon_black_app_control:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | VMware |
| cpe:2.3:a:vmware:carbon_black_app_control:8.1:*:*:*:*:*:*:* | 8.1 | Vulnerable | VMware |
- cpe:2.3:a:vmware:carbon_black_app_control:*:*:*:*:*:*:*:* Versions 8.5 to before 8.5.8; 8.6 to before 8.6.2 Vulnerable ·VMware
- cpe:2.3:a:vmware:carbon_black_app_control:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·VMware
- cpe:2.3:a:vmware:carbon_black_app_control:8.1:*:*:*:*:*:*:* Versions 8.1 Vulnerable ·VMware
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-21998
- 2026-10-03 Alias added: GHSA-fp4q-hrv9-r6f5
References
More VMware Carbon Black App Control vulnerabilities
- TI-2022-07128 OS command injection in VMware Carbon Black App Control CVSS 3.1CRITICAL 9.1
- TI-2023-07277 Injection in VMware Carbon Black App Control CVSS 3.1HIGH 7.2
- TI-2022-07129 Unrestricted file upload in VMware Carbon Black App Control CVSS 3.1CRITICAL 9.1
Sources
- CVE-2021-21998 · CVE Program
- CVE-2021-21998 · NVD
- FIRST EPSS
- GHSA-fp4q-hrv9-r6f5 · GitHub Advisory Database · CC BY 4.0
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