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.
CVSS v4.0 Metrics
Exploitability
Attack VectorLocal
ComplexityLow
RequirementsPresent
PrivilegesLow
User InteractionNone
Threat
Exploit MaturityUnreported
Vulnerable System
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | nvd | AV: P→L, AC: H→L, PR: H→L, UI: A→N, VC: N→H, VI: N→H, VA: N→H | 0.0 → 4.4 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 0.0 |
Affected Software
| Vendor | Product | Version |
|---|
| atlassian | bitbucket | < 6.10.9 |
| atlassian | bitbucket | ≥ 7.0.0, < 7.6.4 |
| atlassian | bitbucket | ≥ 7.7.0, < 7.10.1 |
| Atlassian | Bitbucket Data Center | < 6.10.9 |
| Atlassian | Bitbucket Data Center | < 7.6.4 |
| Atlassian | Bitbucket Data Center | < 7.10.1 |
| Atlassian | Bitbucket Data Center | 7.0.0 |
| Atlassian | Bitbucket Data Center | 7.7.0 |
| Atlassian | Bitbucket Server | < 7.6.4 |
| Atlassian | Bitbucket Server | < 7.10.1 |
| Atlassian | Bitbucket Server | < 6.10.9 |
| Atlassian | Bitbucket Server | 7.0.0 |
| Atlassian | Bitbucket Server | 7.7.0 |
Published: 2021-02-18
