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Fencer Intel
high 7.8

CVE-2020-36233 json

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.…

published 5y ago modified 4mo ago also EUVD-2020-23778

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 18%
public exploits
0
none known

Summary

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.

Patch / fix

  • Atlassian Bitbucket Server 6.10.9, 7.6.4, 7.10.1
  • Atlassian Bitbucket Data Center 6.10.9, 7.6.4, 7.10.1

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Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Atlassian Bitbucket Server
  • Atlassian Bitbucket Data Center

Classification

Weakness
  • CWE-276 Incorrect Default Permissions

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.