CVE-2025-58431: IceWhaleTech ZimaOS · Execution with Unnecessary Privileges
Affects IceWhaleTech ZimaOSSource CVE Database V5
Not known to be exploited · CVSS 4.8 Medium.
Data as of 26 Oct 2026, 07:57 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 17 Sep 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| IceWhaleTech ZimaOS | Affected
| Fixed in– |
AI-suggested
To mitigate this vulnerability, European organizations should: 1) Immediately restrict access to localhost endpoints to trusted users and processes only, employing strict network segmentation and host-based firewalls to limit local access. 2) Monitor and audit access to the /v2_1/files/file/download endpoint and related system logs for suspicious activity indicative of exploitation attempts. 3) Apply the principle of least privilege by modifying the ZimaOS service handling file downloads to run with minimal privileges rather than root, reducing the risk of privilege escalation. 4) If possible, upgrade to a patched version of ZimaOS once available or apply vendor-provided patches or workarounds. 5) Implement host-based intrusion detection systems (HIDS) to detect anomalous file access patterns. 6) For environments where local access cannot be fully controlled, consider isolating ZimaOS systems or deploying additional access controls such as mandatory access control (MAC) frameworks (e.g., SELinux or AppArmor) to restrict file access. 7) Educate system administrators and users about the risks of local access and enforce strong authentication and physical security controls to prevent unauthorized local access.
Description
ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. In version 1.4.1 and earlier, the /v2_1/files/file/download endpoint allows file read from ANY USER who has access to localhost. File reads are performed AS ROOT.