Heap-based buffer overflow in alwil avast! Anti-virus Engine before 4.7.869 allows remote attackers to execute arbitrary code via a crafted LHA file that contains extended headers with file and directory names whose concatenation triggers the overflow
Published Sep 7, 2006
7.5
HIGHCVSS 2.0
EPSS 4.70%
Description
Heap-based buffer overflow in alwil avast! Anti-virus Engine before 4.7.869 allows remote attackers to execute arbitrary code via a crafted LHA file that contains extended headers with file and directory names whose concatenation triggers the overflow.
Affected products
No data.
- ≤ 4.6.460
- ≤ 4.6.763
- 4.0.168
- 4.0.172
- 4.0.183
- 4.0.202
- 4.0.211
- 4.0.229
- 4.0.235
- 4.1.260
- 4.1.268
- 4.1.278
- 4.1.287
- 4.1.289
- 4.1.304
- 4.1.319
- 4.1.335
- 4.1.342
- 4.1.357
- 4.1.389
- 4.1.396
- 4.1.412
- 4.1.418
- 4.1.501
- 4.5.518
- 4.5.549
- 4.5.561
- 4.6.603
- 4.6.623
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 2, 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 2, 2026 | 4.70% (0.04697) | 91.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.58% (0.04576) | 90.38th | v5 (v2026.06.15) |
| Mar 29, 2025 | 5.27% (0.05267) | 82.97th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.17% (0.04165) | 87.92th | v4 (v2025.03.14) |
| Dec 17, 2024 | 2.89% (0.02887) | 90.52th | v3 (v2023.03.01) |
| Jun 4, 2023 | 4.43% (0.04426) | 91.19th | v3 (v2023.03.01) |
| Mar 20, 2023 | 4.38% (0.04375) | 91.05th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.20% (0.04201) | 90.89th | 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/21794 third-party-advisoryx_refsource_SECUNIA
- http://www.hustlelabs.com/advisories/04072006_alwil.pdf x_refsource_MISCExploitPatchVendor Advisory
- http://www.securityfocus.com/bid/19903 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2006/3515 vdb-entryx_refsource_VUPEN
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/21794 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.hustlelabs.com/advisories/04072006_alwil.pdf | x_refsource_MISCExploitPatchVendor Advisory | |
| http://www.securityfocus.com/bid/19903 | vdb-entryx_refsource_BID | |
| http://www.vupen.com/english/advisories/2006/3515 | vdb-entryx_refsource_VUPEN |
Change history (0)
No recorded changes yet.