CVE-2025-54126

The WebAssembly Micro Runtime's (WAMR) iwasm package is the executable binary built with WAMR VMcore which supports WebAssembly System Interface (WASI) and command line interface. In versions 2.4.0 and below, iwasm uses --addr-pool with an IPv4 address that lacks a subnet mask, allowing the system to accept all IP addresses. This can unintentionally expose the service to all incoming connections and bypass intended access restrictions. Services relying on --addr-pool for restricting access by IP may unintentionally become open to all external connections. This may lead to unauthorized access in production deployments, especially when users assume that specifying an IP without a subnet mask implies a default secure configuration. This is fixed in version 2.4.1.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/bytecodealliance/wasm-micro-runtime/commit/121232a9957a069bbb04ebda053bdc72ab409e7a	Patch
https://github.com/bytecodealliance/wasm-micro-runtime/releases/tag/WAMR-2.4.1	Release Notes
https://github.com/bytecodealliance/wasm-micro-runtime/security/advisories/GHSA-vh64-mfvw-pxqp	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:bytecodealliance:webassembly_micro_runtime:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-07-29 22:15

Updated : 2025-09-23 17:58

NVD link : CVE-2025-54126

Mitre link : CVE-2025-54126

CVE.ORG link : CVE-2025-54126

JSON object : View

Products Affected

bytecodealliance

webassembly_micro_runtime

CWE

CWE-668

Exposure of Resource to Wrong Sphere

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