CVE-2025-54873
August 05, 2025
RISC Zero is a zero-knowledge verifiable general computing platform based on zk-STARKs and the RISC-V microarchitecture. RISC packages risc0-zkvm versions 2.0.0 through 2.1.0 and risc0-circuit-rv32im and risc0-circuit-rv32im-sys versions 2.0.0 through 2.0.4 contain vulnerabilities where signed integer division allows multiple outputs for certain inputs with only one being valid, and division by zero results are underconstrained. This issue is fixed in risc0-zkvm version 2.2.0 and version 3.0.0 for the risc0-circuit-rv32im and risc0-circuit-rv32im-sys packages.
Affected Packages
https://github.com/risc0/risc0.git (GITHUB):
Affected version(s) >=v2.0.0 <v3.0.0Fix Suggestion:
Update to version v3.0.0risc0-circuit-rv32im-sys (RUST):
Affected version(s) >=2.0.0 <2.3.0Fix Suggestion:
Update to version 2.3.0risc0-circuit-rv32im (RUST):
Affected version(s) >=2.0.0 <2.3.0Fix Suggestion:
Update to version 2.3.0risc0-zkvm (RUST):
Affected version(s) >=2.0.0 <2.2.0Fix Suggestion:
Update to version 2.2.0Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
2.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
UNREPORTED
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Divide By Zero
EPSS
Base Score:
0.07
