# CVE-2020-8793: opensmtpd: OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., onsome Linux distributions) because of a com...

CVE-2020-8793 is fixed in opensmtpd on 1 platform, first by opensmtpd 6.0.3p1-1ubuntu0.2, released February 25, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-8793
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0087
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 25, 2020

## Description

OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., onsome Linux distributions) because of a combination of an untrusted searchpath in makemap.c and race conditions in the offline functionality insmtpd.c.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | opensmtpd Ubuntu 18.04.6 LTS (bionic) | 6.0.3p1-1ubuntu0.2 | [opensmtpd 6.0.3p1-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-opensmtpd-6.0.3p1-1ubuntu0.2.md) | Feb 25, 2020 |
| Linux | opensmtpd Ubuntu 20.04 LTS (focal) | 6.6.4p1-1 | [opensmtpd 6.6.4p1-1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-opensmtpd-6.6.4p1-1.md) | Feb 25, 2020 |
| Linux | opensmtpd Ubuntu 24.10 (oracular) | 6.6.4p1-1 | [opensmtpd 6.6.4p1-1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-opensmtpd-6.6.4p1-1.md) | Jan 16, 2026 |
| Linux | opensmtpd Ubuntu 25.04 (plucky) | 6.6.4p1-1 | [opensmtpd 6.6.4p1-1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-opensmtpd-6.6.4p1-1.md) | Jan 16, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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