What’s Vulnerable › Vulnerabilities

CVE-2020-15899

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-07-28 · updated 2026-06-17
• Weakness: CWE-345

Description

Grin 3.0.0 before 4.0.0 has insufficient validation of data related to Mimblewimble.

Affected products

• Grin: from 3.0.0 before 4.0.0 — fixed in 4.0.0

How to fix

Upgrade to a fixed version: Grin 4.0.0. Check the vendor advisory for mitigations.

References

• https://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-15899.md
• https://github.com/mimblewimble/grin/compare/v3.1.1...v4.0.0
• https://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-15899.md
• https://github.com/mimblewimble/grin/compare/v3.1.1...v4.0.0

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