An issue was discovered in Acronis True Image 2020 24.5.22510
Published May 25, 2021
5.5
MEDIUMCVSS 3.1
EPSS 0.38%
Description
An issue was discovered in Acronis True Image 2020 24.5.22510. anti_ransomware_service.exe keeps a log in a folder where unprivileged users have write permissions. The logs are generated in a predictable pattern, allowing an unprivileged user to create a hardlink from a (not yet created) log file to anti_ransomware_service.exe. On reboot, this forces the anti_ransomware_service to try to write its log into its own process, crashing in a SHARING VIOLATION. This crash occurs on every reboot.
Affected products
No data.
- 24.5.22510
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/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 v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.38% (0.00384) | 30.03th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.38% (0.00384) | 29.99th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00037) | 8.05th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00065) | 30.89th | v3 (v2023.03.01) |
| Jun 26, 2024 | 0.07% (0.00065) | 28.96th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.07% (0.00065) | 26.94th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00054) | 19.95th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00890) | 30.33th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01412) | 50.22th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.63% (0.03630) | 71.73th | v1 |
| Jan 6, 2022 | 3.63% (0.03630) | 71.48th | v1 |
| Jan 5, 2022 | 0.83% (0.00833) | 58.90th | v5 (v2026.06.15) |
| May 26, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (3)
- https://danishcyberdefence.dk/blog x_refsource_MISCThird Party Advisory
- https://madsjoensen.dk/cve-2020-9451/ x_refsource_MISCExploitThird Party Advisory
- https://www.acronis.com x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://danishcyberdefence.dk/blog | x_refsource_MISCThird Party Advisory | |
| https://madsjoensen.dk/cve-2020-9451/ | x_refsource_MISCExploitThird Party Advisory | |
| https://www.acronis.com | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.