CVE-2016-2126: samba
Vulnerability summary
CVE-2016-2126 is a medium (CVSS 6.5) vulnerability in samba. EPSS estimates a 6.59% chance of exploitation in the next 30 days, higher than 93.8% of scored vulnerabilities.
Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 14 · Related 7Timeline
- 11-05-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
6 scores · 4 sources · 3 versions- OSV · AlpineEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
6.59%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
No change 0.00 pp
From 6.59% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine1 product
- samba≥ 4.0.0, < 4.2.14-r1 | ≥ 4.0.0, < 4.4.5-r2
Debian1 product
- samba< 2:4.5.2+dfsg-2
Samba1 product
- samba≥ 4.0.0, < 4.3.13 | ≥ 4.4.0, < 4.4.8 | ≥ 4.5.0, < 4.5.3
Ubuntu1 product
- samba< 2:4.3.11+dfsg-0ubuntu0.14.04.4 | < 2:4.3.11+dfsg-0ubuntu0.16.04.3
4 vendors · 4 products
References
14 links- kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730X Refsource CONFIRMThird Party Advisory
