CVE-2023-39003
CVE-2023-39003 is a high-severity vulnerability in Opnsense with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-732.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (47th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-732
- Affected product: Opnsense
- Published:
- Last modified:
Description
OPNsense Community Edition before 23.7 and Business Edition before 23.4.2 was discovered to contain insecure permissions in the directory /tmp.
Frequently asked questions
- What is CVE-2023-39003?
- OPNsense Community Edition before 23.7 and Business Edition before 23.4.2 was discovered to contain insecure permissions in the directory /tmp.
- How severe is CVE-2023-39003?
- CVE-2023-39003 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2023-39003 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-39003?
- CVE-2023-39003 affects Opnsense. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-39003?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2023-39003 published?
- CVE-2023-39003 was published on 2023-08-09 and last updated on 2026-07-09.
References
Affected products (1)
- cpe:2.3:a:opnsense:opnsense:*:*:*:*:*:*:*:*
More vulnerabilities in Opnsense
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