CVE-2026-45431
CVE-2026-45431 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. 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-78.
Key facts
- Severity: High (CVSS 4.0 base score 8.7)
- EPSS exploit prediction: 0% (31st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-34247
- Weakness: CWE-78
- Published:
- Last modified:
Description
This vulnerability exists in GX Earth ONT models due to improper handling of user-supplied input in multiple diagnostic functions in its web management interface. An authenticated remote attacker could exploit this vulnerability by injecting arbitrary and executing OS commands on the targeted device. Successful exploitation of this vulnerability could allow the attacker to perform remote code execution with root privileges on the targeted device.
Frequently asked questions
- What is CVE-2026-45431?
- This vulnerability exists in GX Earth ONT models due to improper handling of user-supplied input in multiple diagnostic functions in its web management interface. An authenticated remote attacker could exploit this vulnerability by injecting arbitrary and executing OS commands on the targeted device. Successful exploitation of this vulnerability could allow the attacker to perform remote code execution with root privileges on the targeted device.
- How severe is CVE-2026-45431?
- CVE-2026-45431 has a CVSS 4.0 base score of 8.7, rated high severity.
- Is CVE-2026-45431 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-45431?
- 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.
- Does CVE-2026-45431 have an EU (EUVD) identifier?
- Yes. CVE-2026-45431 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34247.
- When was CVE-2026-45431 published?
- CVE-2026-45431 was published on 2026-06-04 and last updated on 2026-06-17.
References
Other CWE-78 (OS Command Injection) vulnerabilities
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