Name: CVE-2020-8793: Time-of-check Time-of-use (TOCTOU) Race Condition
Creator: Rapid7
Published: 2020-02-25T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2020-8793, CWE-367, CWE-426, CVSS 4.7, EPSS 0.00786

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

CVSS Details

CVSS 3.1 Base Score: 4.7
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade opensmtpd	Jul 30, 2024	Feb 25, 2020
Freebsd	—	Upgrade opensmtpd	Dec 10, 2025	Feb 24, 2020
Ubuntu	—	Upgrade opensmtpdUpgrade opensmtpd (Ubuntu Pro)	Mar 3, 2020	Feb 24, 2020

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CVSS Details

Covered by Rapid7

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