IBM Security Verify Access 10.0.0.0, 10.0.1.0 and 10.0.2.0 with the advanced access control authentication service enabled could allow an attacker to authenticate as any user on the system. IBM X-Force ID: 215353.
Conclusion & alert: CVE-2021-39070 is rated High Risk (66.6/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.78%). Core evidence: EPSS rose +1.11% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.67% | 1.78% | +1.11% |
| 2 | 2025-03-30 | 1.81% | 0.67% | -1.14% |
| 3 | 2025-03-29 | — | 1.81% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 9.8 | 3.0 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| ibm | security_verify_access | 10.0.0 | cpe:2.3:a:ibm:security_verify_access:10.0.0:*:*:*:*:*:*:* |
| ibm | security_verify_access | 10.0.1.0 | cpe:2.3:a:ibm:security_verify_access:10.0.1.0:*:*:*:*:*:*:* |
| ibm | security_verify_access | 10.0.2.0 | cpe:2.3:a:ibm:security_verify_access:10.0.2.0:*:*:*:*:*:*:* |
| ibm | security_verify_access_docker | 10.0.0 | cpe:2.3:a:ibm:security_verify_access_docker:10.0.0:*:*:*:*:*:*:* |
| ibm | security_verify_access_docker | 10.0.1.0 | cpe:2.3:a:ibm:security_verify_access_docker:10.0.1.0:*:*:*:*:*:*:* |
| ibm | security_verify_access_docker | 10.0.2.0 | cpe:2.3:a:ibm:security_verify_access_docker:10.0.2.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://exchange.xforce.ibmcloud.com/vulnerabilities/215353 | VDB Entry Vendor Advisory |
| https://www.ibm.com/support/pages/node/6552318 | Vendor Advisory |