Buffer overflow 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 execute arbitrary code via an ACE archive containing a long filename
Published Jul 27, 2005
7.5
HIGHCVSS 2.0
EPSS 4.04%
Description
Buffer overflow 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 execute arbitrary code via an ACE archive containing a long filename.
Affected products
No data.
- 4.6.460
- 4.6.665
- 4.6.665
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.04% (0.04035) | 90.29th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.04% (0.04035) | 89.25th | v5 (v2026.06.15) |
| Mar 19, 2025 | 3.99% (0.03994) | 87.03th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.26% (0.05259) | 89.28th | v4 (v2025.03.14) |
| Dec 17, 2024 | 2.36% (0.02364) | 89.50th | v3 (v2023.03.01) |
| Jul 3, 2024 | 4.95% (0.04946) | 92.86th | v3 (v2023.03.01) |
| Apr 2, 2023 | 5.32% (0.05319) | 91.84th | v3 (v2023.03.01) |
| Mar 7, 2023 | 6.49% (0.06487) | 92.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.52% (0.06523) | 91.37th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.52% (0.06523) | 90.53th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.52% (0.06523) | 78.43th | v2 (v2022.01.01) |
No CWE recorded.
References (4)
- http://secunia.com/advisories/15776 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://secunia.com/secunia_research/2005-20/advisory/ x_refsource_MISCPatchVendor Advisory
- http://securitytracker.com/id?1014544 vdb-entryx_refsource_SECTRACK
- http://www.avast.com/eng/av4_revision_history.html x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/15776 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://secunia.com/secunia_research/2005-20/advisory/ | x_refsource_MISCPatchVendor Advisory | |
| http://securitytracker.com/id?1014544 | vdb-entryx_refsource_SECTRACK | |
| http://www.avast.com/eng/av4_revision_history.html | x_refsource_MISC |
Change history (0)
No recorded changes yet.