Directory traversal vulnerability in a third-party compression library (UNACEV2.DLL), as used in avast! Antivirus Home/Professional Edition 4.6.665 and Server Edition 4.6.460, allows remote attackers to write arbitrary files via an ACE archive containing filenames with (1) .. or (2) absolute pathnames.
Conclusion & alert: CVE-2005-2384 is rated Moderate Risk (51.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.49%). Core evidence: EPSS rose +1.03% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule 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 | 2.46% | 3.49% | +1.03% |
| 2 | 2025-03-30 | 2.74% | 2.46% | -0.28% |
| 3 | 2025-03-29 | — | 2.74% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| alwil | avast_antivirus | 4.6.460 | cpe:2.3:a:alwil:avast_antivirus:4.6.460:*:server:*:*:*:*:* |
| alwil | avast_antivirus | 4.6.665 | cpe:2.3:a:alwil:avast_antivirus:4.6.665:*:home:*:*:*:*:* |
| alwil | avast_antivirus | 4.6.665 | cpe:2.3:a:alwil:avast_antivirus:4.6.665:*:pro:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://secunia.com/advisories/15776 | Patch Vendor Advisory |
| http://secunia.com/secunia_research/2005-20/advisory/ | Patch Vendor Advisory |
| http://securitytracker.com/id?1014544 | |
| http://www.avast.com/eng/av4_revision_history.html |