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CVE-2021-31876

🗓️ 09 Jan 2026 11:23:42Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com

CVE-2021-31876: Bitcoin Core 0.12.0–0.21.1 fails to enforce BIP125 replacement policy.

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Refs
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The vulnerability of the PreChecks functionality in the standard Bitcoin Core implementation, related to improper authentication, allows a violator to compromise data integrity and cause service failures.
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CVE-2021-31876
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EUVD
EUVD-2021-18751
7 Oct 202500:30
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CVE-2021-31876
13 May 202122:15
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27 Mar 2026 14:06Current
6.5Medium risk
Vulners AI Score6.5
CVSS 26.4
CVSS 3.16.5
EPSS0.00487
0