CVE-2012-3039
CVE-2012-3039 is a high-severity vulnerability in Moxa Oncell Gateway Firmware with a CVSS 2.0 base score of 7.1. 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-310.
Key facts
- Severity: High (CVSS 2.0 base score 7.1)
- EPSS exploit prediction: 1% (69th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-310
- Affected product: Moxa Oncell Gateway Firmware
- Published:
- Last modified:
Description
Moxa OnCell Gateway G3111, G3151, G3211, and G3251 devices with firmware before 1.4 do not use a sufficient source of entropy for SSH and SSL keys, which makes it easier for remote attackers to obtain access by leveraging knowledge of a key from a product installation elsewhere.
Frequently asked questions
- What is CVE-2012-3039?
- Moxa OnCell Gateway G3111, G3151, G3211, and G3251 devices with firmware before 1.4 do not use a sufficient source of entropy for SSH and SSL keys, which makes it easier for remote attackers to obtain access by leveraging knowledge of a key from a product installation elsewhere.
- How severe is CVE-2012-3039?
- CVE-2012-3039 has a CVSS 2.0 base score of 7.1, rated high severity.
- Is CVE-2012-3039 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2012-3039?
- CVE-2012-3039 primarily affects Moxa Oncell Gateway Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2012-3039?
- 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-2012-3039 published?
- CVE-2012-3039 was published on 2013-08-09 and last updated on 2026-06-16.
References
Affected products (5)
- cpe:2.3:o:moxa:oncell_gateway_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:h:moxa:oncell_gateway_g3111:-:*:*:*:*:*:*:*
- cpe:2.3:h:moxa:oncell_gateway_g3151:-:*:*:*:*:*:*:*
- cpe:2.3:h:moxa:oncell_gateway_g3211:-:*:*:*:*:*:*:*
- cpe:2.3:h:moxa:oncell_gateway_g3251:-:*:*:*:*:*:*:*
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