CVE-2023-39004

CRITICAL 9.8CVE-2023-39004 · Published 09/08/2023 · updated 09/07/2026

In short

CVE-2023-39004 is a CRITICAL (CVSS 9.8) vulnerability affecting opnsense (opnsense).
Chance of exploitation in the next 30 days (EPSS): 0.99%, higher than 62.4% of all vulnerabilities.
Fix: update to 23.7 or later.

Package	Affected versions	Patched versions
opnsense opnsense	`< 23.7`	`23.7`

Description

Insecure permissions in the configuration directory (/conf/) of OPNsense Community Edition before 23.7 and Business Edition before 23.4.2 allow attackers to access sensitive information (e.g., hashed root password) which could lead to privilege escalation.

References

logicaltrust.net/blog/2023/08/opnsense.html · Exploit

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Package

Affected versions

Patched versions

opnsense

< 23.7

23.7

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