What’s Vulnerable › Vulnerabilities

CVE-2023-39004

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-08-09 · updated 2026-07-09
• Weakness: CWE-732

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.

Affected products

• OPNsense: before 23.7 — fixed in 23.7

How to fix

Upgrade to a fixed version: OPNsense 23.7. Check the vendor advisory for mitigations.

References

• https://logicaltrust.net/blog/2023/08/opnsense.html
• https://logicaltrust.net/blog/2023/08/opnsense.html

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