The randMod() function of the smart contract implementation for MyCryptoChamp, an…
Priority LOW 29CWE-338Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.01387 72nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mycryptochamp:mycryptochamp:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Mycryptochamp |
- cpe:2.3:a:mycryptochamp:mycryptochamp:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Mycryptochamp
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-12885
- 2026-10-03 Alias added: GHSA-h4gq-q399-xm7r
References
Sources
- CVE-2018-12885 · CVE Program
- CVE-2018-12885 · NVD
- FIRST EPSS
- GHSA-h4gq-q399-xm7r · GitHub Advisory Database · CC BY 4.0
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