VIR Vulnerability Intelligence Relay

CVE-2016-3067

critical
Published 2017-04-21 · Modified 2026-05-13
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2
7.5
VIR risk
9.8

Description

Cygwin before 2.5.0 does not properly handle updating permissions when changing users, which allows attackers to gain privileges.

Predictions

Exploit likelihood
97%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://cygwin.com/ml/cygwin/2016-02/msg00129.html

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://cygwin.com/ml/cygwin-announce/2016-04/msg00054.html

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://cygwin.com/ml/cygwin-announce/2016-04/msg00020.html

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://cygwin.com/ml/cygwin-announce/2016-02/msg00023.html

Application impact
VendorProductVersionsFixed
cygwincygwin{"endIncluding":"2.4.1-1"}

References

CWEs

CWE-264

Verify integrity in audit chain (admin only). AS-IS.