Stack-based buffer overflow in a token searching function in the dtscore library in Data Transport Services in CA Software Delivery r11.2 C1, C2, C3, and SP4; Unicenter Software Delivery 4.0 C3; CA Advantage Data Transport 3.0 C1; and CA IT Client Manager r12 allows remote attackers to execute arbitrary code via crafted data.
Conclusion & alert: CVE-2009-2026 is rated High Risk (67.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 7.73%, 94th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. 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 | 25.56% | 7.73% | -17.83% |
| 2 | 2025-03-30 | 17.55% | 25.56% | +8.01% |
| 3 | 2025-03-29 | — | 17.55% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| ca | advantage_data_transport | 3.0 | cpe:2.3:a:ca:advantage_data_transport:3.0:c1:*:*:*:*:*:* |
| ca | it_client_manager | r12 | cpe:2.3:a:ca:it_client_manager:r12:*:*:*:*:*:*:* |
| ca | software_delivery | r11 | cpe:2.3:a:ca:software_delivery:r11:c1:*:*:*:*:*:* |
| ca | software_delivery | r11 | cpe:2.3:a:ca:software_delivery:r11:c2:*:*:*:*:*:* |
| ca | software_delivery | r11 | cpe:2.3:a:ca:software_delivery:r11:c3:*:*:*:*:*:* |
| ca | software_delivery | r11 | cpe:2.3:a:ca:software_delivery:r11:sp4:*:*:*:*:*:* |
| ca | unicenter_software_delivery | 4.0 | cpe:2.3:a:ca:unicenter_software_delivery:4.0:c3:*:*:*:*:*:* |