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OpenSMTPD OpenSMTPDsmtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to tr…

Risk 43
Severity
7.5
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to trigger a "very significant" memory leak via messages to an instance that performs many regex lookups.

First published (updated )
CVE-2020-35679

OpenSMTPD OpenSMTPDLast updated 28 April 2026

Risk 90
Severity
9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Last updated 28 April 2026

1 / 2
Source: Ubuntu
First published (updated )
CVE-2020-8794

OpenSMTPD OpenSMTPDRace Condition

Risk 29
Severity
4.7
Race Condition
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Last updated 26 August 2025

1 / 2
Source: Ubuntu
First published (updated )
CVE-2020-8793

OpenSMTPD OpenSMTPDLocal DoS in OpenSMTPD via UNIX domain socket smtpd.sock

Risk 40
Severity
6.9
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

An Improper Check for Unusual or Exceptional Conditions vulnerability in OpenSMTPD allows local users to crash OpenSMTPD.

This issue affects openSUSE Tumbleweed: from ? before 7.8.0p0-1.1.

First published (updated )
CVE-2025-62875

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