CVE-2023-39004 Information disclosure in n/a

Critical 9.8 Published 9 Aug 2023 Updated 9 Jul 2026

Attackers can read sensitive configuration files to obtain hashed root passwords, potentially leading to privilege escalation on OPNsense systems.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-39004?

CVE-2023-39004 is a critical vulnerability in n/a, published on 9 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-732

Which versions are affected by CVE-2023-39004?

It affects 1 product.

Products include Opnsense Opnsense.

How do I fix CVE-2023-39004?

No fix has been published for CVE-2023-39004 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-39004 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-39004 exists.

Sources

Also known as GHSA-g5mw-r3hw-p72x.