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VulnerabilityPublished

CVE-2025-58431: IceWhaleTech ZimaOS · Execution with Unnecessary Privileges

Affects IceWhaleTech ZimaOSSource CVE Database V5

0

Public exploit available · CVSS 4.8 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 4.0 base score
4.8Medium
How severe the flaw is on the 0–10 CVSS scale.
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:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Sep 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
IceWhaleTech ZimaOSAffected
  • <=1.4.1
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.

References

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