01 Record

CVE-2016-2126

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

UnratedPUBLISHEDCNA: redhat

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

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

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 6.58% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 93.7% of scored records. A rank, not a probability.
NVD base score: 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2017-05-11 14:01Z9 YR AGO

Last updated

2024-08-05 23:17Z2 YR AGO

Reserved

2016-01-29

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-264

Data version

5.1

Document digest

77a4769e068b68f199aefd61a433112059d63258d22969d007c035a96ecbf6b2

05 Affected products

VendorProductVersionsPlatforms

redhatenterprise_linuxNot specified—

redhatstorageNot specified—

sambasambaNot specified—

06 References

www.samba.orghttps://www.samba.org/samba/security/CVE-2016-2126.htmlx_refsource_CONFIRM
www.securitytracker.com1037495http://www.securitytracker.com/id/1037495vdb-entryx_refsource_SECTRACK
rhn.redhat.comRHSA-2017:0495http://rhn.redhat.com/errata/RHSA-2017-0495.htmlvendor-advisoryx_refsource_REDHAT
rhn.redhat.comRHSA-2017:0494http://rhn.redhat.com/errata/RHSA-2017-0494.htmlvendor-advisoryx_refsource_REDHAT
kb.pulsesecure.nethttps://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730x_refsource_CONFIRM
access.redhat.comRHSA-2017:1265https://access.redhat.com/errata/RHSA-2017:1265vendor-advisoryx_refsource_REDHAT
www.securityfocus.com94994http://www.securityfocus.com/bid/94994vdb-entryx_refsource_BID
rhn.redhat.comRHSA-2017:0744http://rhn.redhat.com/errata/RHSA-2017-0744.htmlvendor-advisoryx_refsource_REDHAT
rhn.redhat.comRHSA-2017:0662http://rhn.redhat.com/errata/RHSA-2017-0662.htmlvendor-advisoryx_refsource_REDHAT

07 Fixed in

Arch Linux

samba
Fixed in 4.5.3-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

Debian 12

samba
Fixed in 2:4.5.2+dfsg-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

samba
Fixed in 2:4.5.2+dfsg-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

samba
Fixed in 2:4.5.2+dfsg-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

samba
Fixed in 2:4.3.11+dfsg-0ubuntu0.14.04.4

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

samba
Fixed in 2:4.3.11+dfsg-0ubuntu0.16.04.3

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.