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

Quick assessment

Affected
risc0 risc0
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

RISC Zero Ethereum是RISC Zero开源的一个计算平台。 RISC Zero Ethereum存在代码注入漏洞，该漏洞源于主机可利用特制响应写入访客任意内存位置，可能导致执行任意代码。

AI Predicted 9.8 Difficulty: Hard EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2025-61588

Vulnerability Information
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Vulnerability Title
risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`
Source: CVE Program / CVE List V5
Vulnerability Description
RISC Zero is a zero-knowledge verifiable general computing platform based on zk-STARKs and the RISC-V microarchitecture. In versions 2.0.2 and below of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program. Other affected packages include risc0-aggregation versions below 0.9, risc0-zkos-v1compat below 2.1.0, risc0-zkvm versions between 3.0.0-rc.1 and 3.0.1. This issue has been fixed in the following versions: risc0-zkvm-platform 2.1.0, risc0-zkos-v1compat 2.1.0, risc0-aggregation 0.9, and risc0-zkvm 2.3.2 and 3.0.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
RISC Zero Ethereum 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RISC Zero Ethereum是RISC Zero开源的一个计算平台。 RISC Zero Ethereum存在代码注入漏洞，该漏洞源于主机可利用特制响应写入访客任意内存位置，可能导致执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
risc0 risc0 < 2.1.0 -

II. Public POCs for CVE-2025-61588

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III. Intelligence Information for CVE-2025-61588

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Patches & Fixes for CVE-2025-61588 (1)

Vendor Advisories for CVE-2025-61588 (1)

IV. Related Vulnerabilities

Same product: risc0
Same vendor: risc0
Same weakness: CWE-94

V. Comments for CVE-2025-61588

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