Heap-based buffer overflow in the loadexponentialfunc function in mupdf/pdf_function.c in MuPDF in the mupdf-20090223-win32 package, as used in SumatraPDF 0.9.3 and earlier, allows remote attackers to execute arbitrary code via a crafted PDF file. NOTE: some of these details are obtained from third party information.
Conclusion & alert: CVE-2009-1605 is rated High Exploit Risk (72.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 7.04%, 91th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +4.07% over the last day, indicating growing attacker interest. 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 |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | 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 | 2025-10-21 | 2.97% | 7.04% | +4.07% |
| 2 | 2025-09-30 | 2.21% | 2.97% | +0.76% |
| 3 | 2025-03-30 | — | 2.21% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.4 | 3.1 | MEDIUM |
|
2.8 | 2.5 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| sumatrapdfreader | sumatrapdf | <= 0.9.3 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:*:*:*:*:*:*:*:* |
| sumatrapdfreader | sumatrapdf | 0.1 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.1:*:*:*:*:*:*:* |
| sumatrapdfreader | sumatrapdf | 0.2 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.2:*:*:*:*:*:*:* |
| sumatrapdfreader | sumatrapdf | 0.3 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.3:*:*:*:*:*:*:* |
| sumatrapdfreader | sumatrapdf | 0.4 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.4:*:*:*:*:*:*:* |
| sumatrapdfreader | sumatrapdf | 0.5 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.5:*:*:*:*:*:*:* |
| sumatrapdfreader | sumatrapdf | 0.6 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.6:*:*:*:*:*:*:* |
| sumatrapdfreader | sumatrapdf | 0.7 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.7:*:*:*:*:*:*:* |
| sumatrapdfreader | sumatrapdf | 0.8 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.8:*:*:*:*:*:*:* |
| sumatrapdfreader | sumatrapdf | 0.8.1 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.8.1:*:*:*:*:*:*:* |
| sumatrapdfreader | sumatrapdf | 0.9 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.9:*:*:*:*:*:*:* |
| sumatrapdfreader | sumatrapdf | 0.9.1 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.9.1:*:*:*:*:*:*:* |
| sumatrapdfreader | sumatrapdf | 0.9.2 | cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.9.2:*:*:*:*:*:*:* |