CVE-2020-12439
MEDIUMCVSS 5.3/10EPSS 1.55%
Last modified
CVE-2020-12439 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Grin before 3.1.0 allows attackers to adversely affect availability of data on a Mimblewimble blockchain.. EPSS estimates a 1.55% chance of exploitation in the next 30 days.
Description
Grin before 3.1.0 allows attackers to adversely affect availability of data on a Mimblewimble blockchain.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Grin | Grin | < 3.1.0 |
References
- https://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-12439.mdThird Party Advisory
- https://github.com/mimblewimble/grin/issues/3235Issue Tracking, Patch, Third Party Advisory
- https://github.com/mimblewimble/grin/pull/3236Patch, Third Party Advisory
- https://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-12439.mdThird Party Advisory
- https://github.com/mimblewimble/grin/issues/3235Issue Tracking, Patch, Third Party Advisory
- https://github.com/mimblewimble/grin/pull/3236Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-12439?
Grin before 3.1.0 allows attackers to adversely affect availability of data on a Mimblewimble blockchain.
How severe is CVE-2020-12439?
CVE-2020-12439 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.55% probability of exploitation in the next 30 days.
How do I fix CVE-2020-12439?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-12439?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST