PatchTheCVECVE-2017-10140: Postfix before 2.11.10, 3.0.x before 3.0.10, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 might allow local user
CVE-2017-10140 is a high-severity flaw (CVSS 7.8) affecting postfix. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Postfix before 2.11.10, 3.0.x before 3.0.10, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 might allow local users to gain privileges by leveraging undocumented functionality in Berkeley DB 2.x and later, related to reading settings from DB_CONFIG in the current directory.
Why this priority
- High severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 54%) |
| CISA exploited list | No |
| Published | 2018-04-16 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-10140?
postfix: upgrade to 2.11.10, 3.0.10, 3.1.6, 3.2.2. Exact commands for each OS are on this page.
Is CVE-2017-10140 being exploited?
CVE-2017-10140 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-10140 affect?
CVE-2017-10140 affects postfix. Severity is high (CVSS 7.8). Postfix before 2.11.10, 3.0.x before 3.0.10, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 might allow local users to gain privileges by leveraging undocumented functionality in Berkeley DB 2.x and later, related to reading settings from DB_CO
How urgent is CVE-2017-10140?
Priority 44/100. High severity; Public exploit reference
Software pages
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