Stack-based buffer overflow in IBM Forms Viewer 4.x before 4.0.0.3 and 8.x before 8.0.1.1 allows remote attackers to execute arbitrary code via an XFDL form with a long fontname value.
Conclusion & alert: CVE-2013-5447 is rated High Exploit Risk (75.7/100): CVSS Medium severity, with high exploitation likelihood (EPSS 68.32%, 99th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 30789 | exploit_db | edb | 2014-01-07 | Exploit-DB ↗ |
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 | 2026-01-30 | 69.33% | 68.32% | -1.01% |
| 2 | 2025-03-30 | 72.88% | 69.33% | -3.56% |
| 3 | 2025-03-29 | — | 72.88% | — |
Full EPSS history (18 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| ibm | forms_viewer | 4.0.0 | cpe:2.3:a:ibm:forms_viewer:4.0.0:*:*:*:*:*:*:* |
| ibm | forms_viewer | 4.0.0.1 | cpe:2.3:a:ibm:forms_viewer:4.0.0.1:*:*:*:*:*:*:* |
| ibm | forms_viewer | 4.0.0.2 | cpe:2.3:a:ibm:forms_viewer:4.0.0.2:*:*:*:*:*:*:* |
| ibm | forms_viewer | 8.0.0 | cpe:2.3:a:ibm:forms_viewer:8.0.0:*:*:*:*:*:*:* |
| ibm | forms_viewer | 8.0.1 | cpe:2.3:a:ibm:forms_viewer:8.0.1:*:*:*:*:*:*:* |