In Avast Antivirus before v17, using the LPC interface API exposed by the AvastSVC.exe Windows service, it is possible to launch predefined binaries, or replace or delete arbitrary files
Published Apr 27, 2017
9.8
CRITICALCVSS 3.0
EPSS 1.78%
Description
In Avast Antivirus before v17, using the LPC interface API exposed by the AvastSVC.exe Windows service, it is possible to launch predefined binaries, or replace or delete arbitrary files. This vulnerability is exploitable by any unprivileged user when Avast Self-Defense is disabled. It is also exploitable in conjunction with CVE-2017-8308 when Avast Self-Defense is enabled. The vulnerability allows for Denial of Service attacks and hiding traces of a possible attack.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.78% (0.01781) | 77.45th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.78% (0.01781) | 75.31th | v5 (v2026.06.15) |
| Mar 29, 2025 | 1.81% (0.01812) | 71.67th | v4 (v2025.03.14) |
| Jul 20, 2024 | 1.37% (0.01370) | 86.43th | v3 (v2023.03.01) |
| May 8, 2024 | 1.37% (0.01370) | 86.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.37% (0.01370) | 84.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.78% (0.00777) | 21.50th | v1 |
| Jan 6, 2022 | 0.78% (0.00777) | 20.90th | v1 |
| Sep 1, 2021 | 0.78% (0.00777) | 50.67th | v1 |
| Apr 14, 2021 | 0.78% (0.00777) | 0.00th | v1 |
No CWE recorded.
References (2)
- http://www.securityfocus.com/bid/98086 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://www.trustwave.com/Resources/Security-Advisories/Advisories/Multiple-Vulnerabilities-in-Avast-Antivirus/?fid=9201 x_refsource_MISCExploitTechnical DescriptionThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/98086 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://www.trustwave.com/Resources/Security-Advisories/Advisories/Multiple-Vulnerabilities-in-Avast-Antivirus/?fid=9201 | x_refsource_MISCExploitTechnical DescriptionThird Party Advisory |
Change history (0)
No recorded changes yet.