How severe is CVE-2017-12119?

CVE-2017-12119 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 none, integrity none, and availability high.

Is CVE-2017-12119 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-12119?

CVE-2017-12119 affects Ethereum Cpp-ethereum. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-12119?

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-2017-12119 published?

CVE-2017-12119 was published on 2018-01-19 and last updated on 2026-06-17.

CVE-2017-12119

CVE-2017-12119 is a high-severity vulnerability in Ethereum Cpp-ethereum 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-754.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-754
Affected product: Ethereum Cpp-ethereum
Published: 2018-01-19
Last modified: 2026-06-17

Description

An exploitable unhandled exception vulnerability exists in multiple APIs of CPP-Ethereum JSON-RPC. Specially crafted JSON requests can cause an unhandled exception resulting in denial of service. An attacker can send malicious JSON to trigger this vulnerability.

Frequently asked questions

What is CVE-2017-12119?: An exploitable unhandled exception vulnerability exists in multiple APIs of CPP-Ethereum JSON-RPC. Specially crafted JSON requests can cause an unhandled exception resulting in denial of service. An attacker can send malicious JSON to trigger this vulnerability.
How severe is CVE-2017-12119?: CVE-2017-12119 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 none, integrity none, and availability high.
Is CVE-2017-12119 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-12119?: CVE-2017-12119 affects Ethereum Cpp-ethereum. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-12119?: 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-2017-12119 published?: CVE-2017-12119 was published on 2018-01-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ethereum:cpp-ethereum:-:*:*:*:*:*:*:*

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