CVE-2025-61588: risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

CVE-2025-61588 · Severity: medium · CVSS 4 · Published 2025-10-01

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Technologies: risc0-zkvm (crates.io). Vendors: crates.io.

Quick answers

Is CVE-2025-61588 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-61588 being exploited in the wild.
How severe is CVE-2025-61588?
Medium severity, with a CVSS score of 4, published 1 October 2025.
Which products and versions are affected?
risc0-aggregation (crates.io) ECOSYSTEM:introduced=0,fixed=0.9; risc0-zkos-v1compat (crates.io) SEMVER:introduced=0,fixed=2.1.0; risc0-zkvm (crates.io) SEMVER:introduced=0,fixed=2.3.2; risc0-zkvm-platform (crates.io) SEMVER:introduced=0,fixed=2.1.0.
Is there a fix for CVE-2025-61588?
Yes. risc0-aggregation (crates.io): upgrade to 0.9 or later; risc0-zkos-v1compat (crates.io): upgrade to 2.1.0 or later; risc0-zkvm (crates.io): upgrade to 2.3.2 or later; risc0-zkvm-platform (crates.io): upgrade to 2.1.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-61588?
Check whether you run risc0-aggregation (crates.io), risc0-zkos-v1compat (crates.io), risc0-zkvm (crates.io) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • risc0-aggregation (crates.io): upgrade to 0.9 or later
    cargo update -p risc0-aggregation
  • risc0-zkos-v1compat (crates.io): upgrade to 2.1.0 or later
    cargo update -p risc0-zkos-v1compat
  • risc0-zkvm (crates.io): upgrade to 2.3.2 or later
    cargo update -p risc0-zkvm
  • risc0-zkvm-platform (crates.io): upgrade to 2.1.0 or later
    cargo update -p risc0-zkvm-platform

Affected products

  • risc0-aggregation (crates.io) ECOSYSTEM:introduced=0,fixed=0.9
  • risc0-zkos-v1compat (crates.io) SEMVER:introduced=0,fixed=2.1.0
  • risc0-zkvm (crates.io) SEMVER:introduced=0,fixed=2.3.2
  • risc0-zkvm-platform (crates.io) SEMVER:introduced=0,fixed=2.1.0

Identifiers

  • CVE-2025-61588
  • GHSA-jqq4-c7wq-36h7

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