IBM Global Security Kit (aka GSKit) before 8.0.14.22, as used in IBM Rational Directory Server, IBM Tivoli Directory Server, and other products, does not properly validate data during execution of a protection mechanism against the Vaudenay SSL CBC timing attack, which allows remote attackers to cause a denial of service (application crash) via crafted values in the TLS Record Layer, a different vulnerability than CVE-2012-2333.
Conclusion & alert: CVE-2012-2191 is rated Moderate Risk (50.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.88%). Mandatory action: Review affected assets and schedule 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 | 4.74% | 3.88% | -0.86% |
| 2 | 2025-12-07 | 3.22% | 4.74% | +1.52% |
| 3 | 2025-03-30 | — | 3.22% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| ibm | global_security_kit | <= 8.0.13 | cpe:2.3:a:ibm:global_security_kit:*:*:*:*:*:*:*:* |
| ibm | global_security_kit | 7.0.4.28 | cpe:2.3:a:ibm:global_security_kit:7.0.4.28:*:*:*:*:*:*:* |
| ibm | global_security_kit | 7.0.4.29 | cpe:2.3:a:ibm:global_security_kit:7.0.4.29:*:*:*:*:*:*:* |
| ibm | rational_directory_server | — | cpe:2.3:a:ibm:rational_directory_server:*:*:*:*:*:*:*:* |
| ibm | tivoli_directory_server | — | cpe:2.3:a:ibm:tivoli_directory_server:*:*:*:*:*:*:*:* |