CVE-2025-64427
Published: 02 March 2026
Summary
CVE-2025-64427 is a high-severity Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) vulnerability in Zimaspace Zimaos. Its CVSS base score is 7.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 14.9th 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 AC-4 (Information Flow Enforcement) and SI-10 (Information Input Validation).
Deeper analysis
CVE-2025-64427 is a vulnerability in ZimaOS, a fork of CasaOS that serves as an operating system for Zima devices and x86-64 systems with UEFI. Affecting version 1.5.0 and prior, the issue arises from insufficient validation or restriction of target URLs. This allows an authenticated local user to craft requests that target internal IP addresses, such as 127.0.0.1, localhost, or private network ranges. The vulnerability is associated with CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) and CWE-918 (Server-Side Request Forgery), earning a CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L).
An authenticated local user can exploit this vulnerability remotely over the network with low attack complexity and no user interaction. By sending crafted requests, the attacker can interact with internal HTTP/HTTPS services not intended for external or local exposure, potentially achieving high confidentiality impacts through unauthorized access to sensitive information and low availability impacts.
The GitHub security advisory (https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-m8hj-7xg5-p375) documents the vulnerability, published on 2026-03-02. No known patch is publicly available, leaving affected systems reliant on network segmentation or access controls for mitigation.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-208196
Vulnerability details
ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. In version 1.5.0 and prior, due to insufficient validation or restriction of target URLs, an authenticated local user can craft requests that target…
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internal IP addresses (e.g., 127.0.0.1, localhost, or private network ranges). This allows the attacker to interact with internal HTTP/HTTPS services that are not intended to be exposed externally or to local users. No known patch is publicly available.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Direct SSRF (CWE-918) in public-facing ZimaOS web app enables internal service interaction and sensitive data exposure.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation of URL inputs to block crafted requests targeting internal IPs such as 127.0.0.1 or private ranges.
Enforces information flow policies that prohibit requests from reaching unauthorized internal HTTP/HTTPS services.
Boundary protection mechanisms can deny or log traffic attempting to reach loopback or private network addresses from the exposed application.