CVE-2025-57431
Published: 22 September 2025
Summary
CVE-2025-57431 is a high-severity Download of Code Without Integrity Check (CWE-494) vulnerability in Sound4 Pulse-Eco Aes67 Firmware. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 33.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 CM-14 (Signed Components) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
SI-7 mandates integrity verification of firmware prior to installation or update, directly countering the lack of validation for the manual.sh script in malicious firmware packages.
CM-14 requires signed components for firmware, ensuring authenticity and integrity checks that prevent deployment of attacker-modified and repackaged updates.
SI-2 requires timely flaw remediation, directly addressing the firmware update mechanism vulnerability through patching to block RCE exploitation.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Web-based management interface vulnerable to RCE via unvalidated malicious firmware update package containing arbitrary commands in manual.sh, enabling exploitation of a public-facing application.
NVD Description
The Sound4 PULSE-ECO AES67 1.22 web-based management interface is vulnerable to Remote Code Execution (RCE) via a malicious firmware update package. The update mechanism fails to validate the integrity of manual.sh, allowing an attacker to inject arbitrary commands by modifying…
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this script and repackaging the firmware.
Deeper analysisAI
CVE-2025-57431 is a Remote Code Execution (RCE) vulnerability in the Sound4 PULSE-ECO AES67 version 1.22 web-based management interface, published on 2025-09-22. The flaw arises from the firmware update mechanism's failure to validate the integrity of the manual.sh script within update packages, enabling attackers to modify this script with arbitrary commands and repackage the firmware for deployment. It is associated with CWE-494 (Download of Code Without Integrity Check) and carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
A remote, unauthenticated attacker can exploit this vulnerability by crafting a malicious firmware package and tricking an administrator or user with access to the web interface into performing a manual firmware update. The required user interaction involves uploading the tampered package, after which the injected commands in manual.sh execute with elevated privileges on the device, potentially granting full system compromise including high impacts to confidentiality, integrity, and availability.
Mitigation guidance and further details are available in the referenced advisories, including the vendor site at https://www.sound4.com and the vulnerability research repository at https://github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-57431.
Details
- CWE(s)