Improper access control in wasm-micro-runtime - CVE-2025-54126
Published: April 24, 2026
Vulnerability identifier: #VU127497
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-54126
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper access control in the --addr-pool option handling in iwasm when processing an IPv4 address without a subnet mask. A remote attacker can connect from an unintended IP address to disclose sensitive information.
This issue has been confirmed on Linux systems.
Affected software
wasm-micro-runtime
How to mitigate CVE-2025-54126
Install security update from vendor's website.
wasm-micro-runtime - update to 2.4.1