CVE-2025-29072: nethermind juno Integer Overflow or Wraparound

Vulnerability summary

CVE-2025-29072 is a high (CVSS 7.5) Integer Overflow or Wraparound vulnerability in nethermind juno. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 40.2% of scored vulnerabilities.

Timeline

1. 27-03-2025
   PublishedVulnerability first disclosed.
2. 28-03-2025
   Last modifiedVulnerability information updated.

Description

An integer overflow in Nethermind Juno before v.12.05 within the Sierra bytecode decompression logic within the "cairo-lang-starknet-classes" library could allow remote attackers to trigger an infinite loop (and high CPU usage) by submitting a malicious Declare v2/v3 transaction. This results in a denial-of-service condition for affected Starknet full-node implementations.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.