In Avast Antivirus before v17, an unprivileged user (and thus malware or a virus) can mark an arbitrary process as Trusted from the perspective of the Avast product
Published Apr 27, 2017
7.5
HIGHCVSS 3.0
EPSS 1.46%
Description
In Avast Antivirus before v17, an unprivileged user (and thus malware or a virus) can mark an arbitrary process as Trusted from the perspective of the Avast product. This bypasses the Self-Defense feature of the product, opening a door to subsequent attack on many of its components.
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:N/I:H/A:N
AV:N/AC:L/Au:N/C:N/I:P/A:N
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 v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.46% (0.01459) | 72.59th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.46% (0.01459) | 72.37th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.94% (0.00935) | 83.22th | v3 (v2023.03.01) |
| Mar 8, 2024 | 0.94% (0.00935) | 82.63th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.94% (0.00935) | 80.62th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- http://www.securityfocus.com/bid/98084 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/98084 | 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.