Sophos Anti-Virus for Windows and for Unix/Linux before 2.48.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted UPX packed file, resulting from an "integer cast around". NOTE: as of 20070828, the vendor says this is a DoS and the researcher says this allows code execution, but the researcher is reliable.
Conclusion & alert: CVE-2007-4578 is rated Moderate Risk (56/100): CVSS Medium severity, with high exploitation likelihood (EPSS 7.30%, 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 | 11.23% | 7.30% | -3.94% |
| 2 | 2026-06-08 | 9.34% | 11.23% | +1.89% |
| 3 | 2026-04-16 | — | 9.34% | — |
Full EPSS history (16 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 |
|---|---|---|---|
| sophos | anti-virus | 3.4.6 | cpe:2.3:a:sophos:anti-virus:3.4.6:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.78 | cpe:2.3:a:sophos:anti-virus:3.78:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.78d | cpe:2.3:a:sophos:anti-virus:3.78d:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.79 | cpe:2.3:a:sophos:anti-virus:3.79:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.80 | cpe:2.3:a:sophos:anti-virus:3.80:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.81 | cpe:2.3:a:sophos:anti-virus:3.81:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.82 | cpe:2.3:a:sophos:anti-virus:3.82:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.83 | cpe:2.3:a:sophos:anti-virus:3.83:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.84 | cpe:2.3:a:sophos:anti-virus:3.84:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.85 | cpe:2.3:a:sophos:anti-virus:3.85:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.86 | cpe:2.3:a:sophos:anti-virus:3.86:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.90 | cpe:2.3:a:sophos:anti-virus:3.90:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.91 | cpe:2.3:a:sophos:anti-virus:3.91:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.95 | cpe:2.3:a:sophos:anti-virus:3.95:*:*:*:*:*:*:* |
| sophos | anti-virus | 3.96.0 | cpe:2.3:a:sophos:anti-virus:3.96.0:*:*:*:*:*:*:* |
| sophos | anti-virus | 4.03 | cpe:2.3:a:sophos:anti-virus:4.03:*:linux:*:*:*:*:* |
| sophos | anti-virus | 4.04 | cpe:2.3:a:sophos:anti-virus:4.04:*:*:*:*:*:*:* |
| sophos | anti-virus | 4.05 | cpe:2.3:a:sophos:anti-virus:4.05:*:*:*:*:*:*:* |
| sophos | anti-virus | 4.5.3 | cpe:2.3:a:sophos:anti-virus:4.5.3:*:*:*:*:*:*:* |
| sophos | anti-virus | 4.5.4 | cpe:2.3:a:sophos:anti-virus:4.5.4:*:*:*:*:*:*:* |
| sophos | anti-virus | 4.5.11 | cpe:2.3:a:sophos:anti-virus:4.5.11:*:*:*:*:*:*:* |
| sophos | anti-virus | 4.5.12 | cpe:2.3:a:sophos:anti-virus:4.5.12:*:*:*:*:*:*:* |
| sophos | anti-virus | 4.7.1 | cpe:2.3:a:sophos:anti-virus:4.7.1:*:*:*:*:*:*:* |
| sophos | anti-virus | 4.7.2 | cpe:2.3:a:sophos:anti-virus:4.7.2:*:*:*:*:*:*:* |
| sophos | anti-virus | 5.0.1 | cpe:2.3:a:sophos:anti-virus:5.0.1:*:*:*:*:*:*:* |
| sophos | anti-virus | 5.0.2 | cpe:2.3:a:sophos:anti-virus:5.0.2:*:*:*:*:*:*:* |
| sophos | anti-virus | 5.0.4 | cpe:2.3:a:sophos:anti-virus:5.0.4:*:*:*:*:*:*:* |
| sophos | anti-virus | 5.0.9 | cpe:2.3:a:sophos:anti-virus:5.0.9:*:*:*:*:*:*:* |
| sophos | anti-virus | 5.0.9 | cpe:2.3:a:sophos:anti-virus:5.0.9:*:linux:*:*:*:*:* |
| sophos | anti-virus | 5.1 | cpe:2.3:a:sophos:anti-virus:5.1:*:*:*:*:*:*:* |
| sophos | anti-virus | 5.2 | cpe:2.3:a:sophos:anti-virus:5.2:*:*:*:*:*:*:* |
| sophos | anti-virus | 5.2.1 | cpe:2.3:a:sophos:anti-virus:5.2.1:*:*:*:*:*:*:* |
| sophos | anti-virus | 6.5 | cpe:2.3:a:sophos:anti-virus:6.5:*:*:*:*:*:*:* |
| sophos | scanning_engine | 2.30.4 | cpe:2.3:a:sophos:scanning_engine:2.30.4:*:*:*:*:*:*:* |
| sophos | scanning_engine | 2.40.2 | cpe:2.3:a:sophos:scanning_engine:2.40.2:*:*:*:*:*:*:* |
| sophos | small_business_suite | 4.04 | cpe:2.3:a:sophos:small_business_suite:4.04:*:*:*:*:*:*:* |
| sophos | small_business_suite | 4.05 | cpe:2.3:a:sophos:small_business_suite:4.05:*:*:*:*:*:*:* |