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…
- Published
- Updated
- Reserved
- Assigned by
- redhat
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 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.
Timeline
ID reserved
By redhat
- 16 months later
· 16 months later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 6.6% · top 6.1% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
n/a
- affected n/a
References (9)
- https://www.samba.org/samba/security/CVE-2016-2126.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1037495 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- RHSA-2017:0495 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:0494 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2017:1265 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 94994 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2017:0744 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:0662 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2016-2126)Record last updated .