CRITICAL
It was discovered that the Unitrends Backup (UB) before 10.1.0 user interface was exposed to an authentication bypass, which then could allow an unauthenticated user to inject arbitrary commands into its /api/hosts parameters using backquotes
Published Mar 14, 2018
9.8
CRITICALCVSS 3.0
EPSS 64.37%
Description
It was discovered that the Unitrends Backup (UB) before 10.1.0 user interface was exposed to an authentication bypass, which then could allow an unauthenticated user to inject arbitrary commands into its /api/hosts parameters using backquotes.
Affected products
No data.
- < 10.1
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.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
64.37% 0.64369
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.64369
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 (34 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 64.37% (0.64369) | 99.21th | v5 (v2026.06.15) |
| Sep 22, 2026 | 64.37% (0.64369) | 99.20th | v5 (v2026.06.15) |
| Sep 21, 2026 | 54.02% (0.54021) | 98.98th | v5 (v2026.06.15) |
| Sep 6, 2026 | 64.37% (0.64369) | 99.18th | v5 (v2026.06.15) |
| Sep 5, 2026 | 54.02% (0.54021) | 98.96th | v5 (v2026.06.15) |
| Aug 30, 2026 | 64.37% (0.64369) | 99.17th | v5 (v2026.06.15) |
| Aug 28, 2026 | 54.02% (0.54021) | 98.95th | v5 (v2026.06.15) |
| Aug 24, 2026 | 64.37% (0.64369) | 99.17th | v5 (v2026.06.15) |
| Aug 23, 2026 | 54.02% (0.54021) | 98.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 65.52% (0.65520) | 99.16th | v5 (v2026.06.15) |
| Nov 21, 2025 | 70.96% (0.70958) | 98.63th | v4 (v2025.03.14) |
| Nov 18, 2025 | 66.98% (0.66977) | 98.57th | v4 (v2025.03.14) |
| Aug 30, 2025 | 71.73% (0.71732) | 98.67th | v4 (v2025.03.14) |
| Aug 2, 2025 | 77.60% (0.77596) | 98.95th | v4 (v2025.03.14) |
| Mar 30, 2025 | 67.57% (0.67572) | 98.45th | v4 (v2025.03.14) |
| Mar 29, 2025 | 73.19% (0.73186) | 98.41th | v4 (v2025.03.14) |
| Mar 17, 2025 | 67.57% (0.67572) | 98.45th | v4 (v2025.03.14) |
| Dec 17, 2024 | 1.03% (0.01029) | 83.65th | v3 (v2023.03.01) |
| Feb 22, 2024 | 2.08% (0.02079) | 88.74th | v3 (v2023.03.01) |
| Dec 28, 2023 | 2.92% (0.02918) | 89.76th | v3 (v2023.03.01) |
| Oct 8, 2023 | 4.06% (0.04057) | 91.05th | v3 (v2023.03.01) |
| Aug 26, 2023 | 10.59% (0.10586) | 94.30th | v3 (v2023.03.01) |
| Aug 5, 2023 | 18.85% (0.18854) | 95.55th | v3 (v2023.03.01) |
| Mar 26, 2023 | 46.27% (0.46265) | 96.83th | v3 (v2023.03.01) |
| Mar 8, 2023 | 38.56% (0.38561) | 96.57th | v3 (v2023.03.01) |
| Mar 7, 2023 | 42.40% (0.42401) | 96.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 25.84% (0.25842) | 95.62th | v1 |
| Jan 6, 2022 | 25.84% (0.25842) | 95.57th | v1 |
| Sep 1, 2021 | 25.84% (0.25842) | 98.30th | v1 |
| Apr 14, 2021 | 25.84% (0.25842) | 0.00th | v1 |
Weaknesses (1)
References (4)
- https://support.unitrends.com/UnitrendsBackup/s/article/000001150 x_refsource_CONFIRMVendor Advisory
- https://support.unitrends.com/UnitrendsBackup/s/article/000006002 x_refsource_CONFIRMVendor Advisory
- https://www.exploit-db.com/exploits/44297/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/45559/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| https://support.unitrends.com/UnitrendsBackup/s/article/000001150 | x_refsource_CONFIRMVendor Advisory | |
| https://support.unitrends.com/UnitrendsBackup/s/article/000006002 | x_refsource_CONFIRMVendor Advisory | |
| https://www.exploit-db.com/exploits/44297/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry | |
| https://www.exploit-db.com/exploits/45559/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Mar 14, 2018
Updated Aug 5, 2024
Reserved Jan 26, 2018
Link CVE-2018-6328
CISA Vulnrichment
Updated n/a