RISC Zero is a general computing platform based on zk-STARKs and the RISC-V microarchitecture. Due to a missing constraint in the rv32im circuit, any 3-register RISC-V instruction (including remu and divu) in risc0-zkvm 2.0.0, 2.0.1, and 2.0.2 are vulnerable to an attack by a malicious prover. The main idea for the attack is to confuse the RISC-V virtual machine into treating the value of the rs1 register as the same as the rs2 register due to a lack of constraints in the rv32im circuit. Rust applications using the risc0-zkvm crate at versions 2.0.0, 2.0.1, and 2.0.2 should upgrade to version 2.1.0. Smart contract applications using the official RISC Zero Verifier Router do not need to take any action: zkVM version 2.1 is active on all official routers, and version 2.0 has been disabled. Smart contract applications not using the verifier router should update their contracts to send verification calls to the 2.1 version of the verifier.
CVE-2025-52484
This low-severity CVE scores 2.7 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 85% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 2.7
- EG Score
- 2.7(medium)
- EG Risk
- 27(Track)EG Risk 27/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity27% × 45%Exploitation0% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 14.8%
- KEV
- Not listed
Published
June 20, 2025
Last Modified
April 15, 2026
References (7)
- security-advisories@githubhttps://github.com/risc0/risc0/commit/006d86c363b16d2b2ac42d32d832a209ff8ab4c9
- security-advisories@githubhttps://github.com/risc0/risc0/commit/1873bbb8a56793edd1f6195242d184cf6cc5175d
- security-advisories@githubhttps://github.com/risc0/risc0/commit/67f2d81c638bff5f4fcfe11a084ebb34799b7a89
- security-advisories@githubhttps://github.com/risc0/risc0/pull/3181
- security-advisories@githubhttps://github.com/risc0/risc0/security/advisories/GHSA-g3qg-6746-3mg9
- security-advisories@githubhttps://github.com/risc0/zirgen/commit/e0e2918302c93e956f73ca2e44aef2b861d8c3ae
- security-advisories@githubhttps://github.com/risc0/zirgen/pull/238
Affected Packages
(2 across 1 ecosystem)
crates.io(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| risc0-circuit-rv32im | — | 2.0.4 | — |
| risc0-zkvm | — | 2.1.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 122 total refreshes for this CVE.
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Related CVEs(same CWE)
Same CWE
10 shownCWE-345
Frequently asked(5)
What is CVE-2025-52484?
When was CVE-2025-52484 disclosed?
Is CVE-2025-52484 actively exploited?
What is the CVSS score of CVE-2025-52484?
How do I remediate CVE-2025-52484?
Dependency Blast Radius
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