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Case File

CVE-2018-18920

HIGH · CVSS 8.8 EPSS 2.93% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2018-11-12 · 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.

GitHub PoC Links
github.com ↗

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

CVE
CVE-2018-18920
Severity
HIGH
CVSS
8.8
EPSS
2.93%

Original NVD Description

Py-EVM v0.2.0-alpha.33 allows attackers to make a vm.execute_bytecode call that triggers computation._stack.values with '"stack": [100, 100, 0]' where b'\x' was expected, resulting in an execution failure because of an invalid opcode. This is reportedly related to "smart contracts can be executed indefinitely without gas being paid."