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Case File

CVE-2020-15091

MEDIUM · CVSS 6.5 EPSS 0.91% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-07-02 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-15091
Severity
MEDIUM
CVSS
6.5
EPSS
0.91%

Original NVD Description

TenderMint from version 0.33.0 and before version 0.33.6 allows block proposers to include signatures for the wrong block. This may happen naturally if you start a network, have it run for some time and restart it (**without changing chainID**). A malicious block proposer (even with a minimal amount of stake) can use this vulnerability to completely halt the network. This issue is fixed in Tendermint 0.33.6 which checks all the signatures are for the block with 2/3+ majority before creating a commit.