How severe is CVE-2018-15890?

CVE-2018-15890 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-15890 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15890?

CVE-2018-15890 affects Ethereum Ethereumj. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15890?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-15890 published?

CVE-2018-15890 was published on 2019-06-20 and last updated on 2026-06-17.

CVE-2018-15890

CVE-2018-15890 is a critical-severity vulnerability in Ethereum Ethereumj with a CVSS 3.x base score of 9.8. 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Ethereum Ethereumj
Published: 2019-06-20
Last modified: 2026-06-17

Description

An issue was discovered in EthereumJ 1.8.2. There is Unsafe Deserialization in ois.readObject in mine/Ethash.java and decoder.readObject in crypto/ECKey.java. When a node syncs and mines a new block, arbitrary OS commands can be run on the server.

Frequently asked questions

What is CVE-2018-15890?: An issue was discovered in EthereumJ 1.8.2. There is Unsafe Deserialization in ois.readObject in mine/Ethash.java and decoder.readObject in crypto/ECKey.java. When a node syncs and mines a new block, arbitrary OS commands can be run on the server.
How severe is CVE-2018-15890?: CVE-2018-15890 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-15890 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15890?: CVE-2018-15890 affects Ethereum Ethereumj. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15890?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-15890 published?: CVE-2018-15890 was published on 2019-06-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ethereum:ethereumj:1.8.2:*:*:*:*:*:*:*

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