Stack-based buffer overflow in Hospira LifeCare PCA Infusion System 5.0 and earlier, and possibly other versions, allows remote attackers to execute arbitrary code via unspecified vectors.
Conclusion & alert: CVE-2015-3955 is rated High Risk (76.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 14.45%, 94th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.27% 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 | 2025-11-27 | 11.18% | 14.45% | +3.27% |
| 2 | 2025-10-12 | 16.51% | 11.18% | -5.34% |
| 3 | 2025-03-30 | — | 16.51% | — |
Full EPSS history (9 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 |
|---|---|---|---|
| hospira | lifecare_pcainfusion_firmware | <= 5.0 | cpe:2.3:o:hospira:lifecare_pcainfusion_firmware:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.fda.gov/MedicalDevices/Safety/AlertsandNotices/ucm446809.htm | Third Party Advisory US Government Resource |
| http://www.securityfocus.com/bid/75132 | |
| https://ics-cert.us-cert.gov/advisories/ICSA-15-125-01B | Third Party Advisory US Government Resource |