How severe is CVE-2018-12885?

CVE-2018-12885 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-12885 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-2018-12885?

CVE-2018-12885 affects Mycryptochamp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-12885?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-12885 published?

CVE-2018-12885 was published on 2018-08-07 and last updated on 2026-06-17.

CVE-2018-12885

CVE-2018-12885 is a medium-severity vulnerability in Mycryptochamp with a CVSS 3.x base score of 5.9. 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-338.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-338
Affected product: Mycryptochamp
Published: 2018-08-07
Last modified: 2026-06-17

Description

The randMod() function of the smart contract implementation for MyCryptoChamp, an Ethereum game, generates a random value with publicly readable variables such as the current block information and a private variable, (which can be read with a getStorageAt call). Therefore, attackers can get powerful champs/items and get rewards.

Frequently asked questions

What is CVE-2018-12885?: The randMod() function of the smart contract implementation for MyCryptoChamp, an Ethereum game, generates a random value with publicly readable variables such as the current block information and a private variable, (which can be read with a getStorageAt call). Therefore, attackers can get powerful champs/items and get rewards.
How severe is CVE-2018-12885?: CVE-2018-12885 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-12885 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-2018-12885?: CVE-2018-12885 affects Mycryptochamp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-12885?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-12885 published?: CVE-2018-12885 was published on 2018-08-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mycryptochamp:mycryptochamp:-:*:*:*:*:*:*:*

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