CVE-2025-54873
CVE-2025-54873 is a low-severity vulnerability with a CVSS 4.0 base score of 2.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-369.
Key facts
- Severity: Low (CVSS 4.0 base score 2.7)
- EPSS exploit prediction: 0% (29th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-23666
- Weakness: CWE-369
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-54873?
- 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.
- How severe is CVE-2025-54873?
- CVE-2025-54873 has a CVSS 4.0 base score of 2.7, rated low severity.
- Is CVE-2025-54873 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-54873?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-54873 have an EU (EUVD) identifier?
- Yes. CVE-2025-54873 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23666.
- When was CVE-2025-54873 published?
- CVE-2025-54873 was published on 2025-08-06 and last updated on 2026-06-17.
References
- https://github.com/risc0/risc0/pull/3235
- https://github.com/risc0/risc0/security/advisories/GHSA-f6rc-24x4-ppxp
- https://github.com/risc0/zirgen/pull/249
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