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.
History

Wed, 30 Jul 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 30 Jul 2025 11:15:00 +0000

Type Values Removed Values Added
First Time appeared Bytecodealliance
Bytecodealliance webassembly Micro Runtime
Vendors & Products Bytecodealliance
Bytecodealliance webassembly Micro Runtime

Tue, 29 Jul 2025 22:00:00 +0000

Type Values Removed Values Added
Description 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.
Title WebAssembly Micro Runtime's `--addr-pool` option allows all IPv4 addresses when subnet mask is not specified
Weaknesses CWE-668
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2025-07-29T21:52:36.253Z

Updated: 2025-07-30T18:12:22.511Z

Reserved: 2025-07-16T23:53:40.509Z

Link: CVE-2025-54126

cve-icon Vulnrichment

Updated: 2025-07-30T18:12:18.396Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-07-29T22:15:25.503

Modified: 2025-07-31T18:42:56.503

Link: CVE-2025-54126

cve-icon Redhat

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