Access Restriction Bypass Affecting samba3x package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
6.59% (93rd percentile)

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  • Snyk IDSNYK-RHEL10-SAMBA3X-22218782
  • published5 Nov 2026
  • disclosed19 Dec 2016

Introduced: 19 Dec 2016

CVE-2016-2126  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 samba3x.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba3x package and not the samba3x package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions.

CVSS Base Scores

version 3.1