The Microsoft Windows Installer for Atlassian Bitbucket Server and Data Center before version 6.10.9, 7.x before 7.6.4, and from version 7.7.0 before 7.10.1 allows local attackers to escalate privileges because of weak permissions on the installation directory
Published Feb 18, 2021
7.8
HIGHCVSS 3.1
EPSS 0.27%
Description
The Microsoft Windows Installer for Atlassian Bitbucket Server and Data Center before version 6.10.9, 7.x before 7.6.4, and from version 7.7.0 before 7.10.1 allows local attackers to escalate privileges because of weak permissions on the installation directory.
Affected products
-
- Version 7.0.0StatusaffectedConstraints<unspecified
- Version 7.7.0StatusaffectedConstraints<unspecified
- Version unspecifiedStatusaffectedConstraints<6.10.9
- Version unspecifiedStatusaffectedConstraints<7.10.1
- Version unspecifiedStatusaffectedConstraints<7.6.4
- Version
-
- Version 7.0.0StatusaffectedConstraints<unspecified
- Version 7.7.0StatusaffectedConstraints<unspecified
- Version unspecifiedStatusaffectedConstraints<6.10.9
- Version unspecifiedStatusaffectedConstraints<7.10.1
- Version unspecifiedStatusaffectedConstraints<7.6.4
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Atlassian | Bitbucket Data Center | n/a |
| ||||||||||||||||||
| Atlassian | Bitbucket Server | n/a |
|
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:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/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 3, 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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.27% (0.00265) | 16.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.27% (0.00265) | 17.66th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00038) | 8.37th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 0.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 0.50th | 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 | 1.40% (0.01404) | 49.02th | v2 (v2022.01.01) |
| Feb 3, 2022 | 14.61% (0.14607) | 89.74th | v1 |
| Jan 6, 2022 | 14.61% (0.14607) | 89.62th | v1 |
| Sep 1, 2021 | 3.67% (0.03673) | 82.76th | v1 |
| Apr 14, 2021 | 3.67% (0.03673) | 0.00th | v1 |
References (2)
- https://jira.atlassian.com/browse/BSERV-12753 x_refsource_MISCIssue TrackingVendor Advisory
- https://www.kb.cert.org/vuls/id/240785 third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| https://jira.atlassian.com/browse/BSERV-12753 | x_refsource_MISCIssue TrackingVendor Advisory | |
| https://www.kb.cert.org/vuls/id/240785 | third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource |
Change history (0)
No recorded changes yet.