CVE-2025-53396

Local root escalation via misassigned resource permissions

Published Aug 28, 2025 · Updated Aug 28, 2025

Incorrect permissions in SS1 16.0.0.10 and earlier allow local users with client-terminal access to obtain root privileges on macOS. The published advisories do not identify the critical resource, its path, or the permission-setting operation that exposes it. Exploitation requires an authenticated local session on an affected macOS client terminal and grants full root-level control of that endpoint.

CVSS severity7.3
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permissions in SS1 16.0.0.10 and earlier allow local users with client-terminal access to obtain root privileges on macOS. The published advisories do not identify the critical resource, its path, or the permission-setting operation that exposes it. Exploitation requires an authenticated local session on an affected macOS client terminal and grants full root-level control of that endpoint.

The record

CVE
CVE-2025-53396
Published
Aug 28, 2025
Updated
Aug 28, 2025
Vendor
DOS Co., Ltd.
Product
SS1 Cloud
Classifications
CWE-732, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Ver.2.1.3 and earlier (Affected under MacOS environment only)

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

DOS Co., Ltd. · SS1 Cloudversion=Ver.2.1.3 and earlier (Affected under MacOS environment only)
DOS Co., Ltd. · SS1version=Ver.16.0.0.10 and earlier (Media version:16.0.0a and earlier) (Affected under MacOS environment only)

Published CVSS scores

7.0JPCERT/CCCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.3JPCERT/CCCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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