Description
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.
Scores
CVSS v4
2.7
EPSS
0.0011
EPSS Percentile
28.2%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-369
Status
published
Products (4)
crates.io/risc0-circuit-rv32im
2.0.0 - 3.0.0crates.io
crates.io/risc0-circuit-rv32im-sys
2.0.0 - 3.0.0crates.io
crates.io/risc0-zkvm
2.0.0 - 2.2.0crates.io
risc0/risc0
>= 2.0.0, < 2.2.0
Published
Aug 06, 2025
Tracked Since
Feb 18, 2026