CVE-2025-27688
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedDell ThinOS 2408 and prior, contains an improper permissions vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of privileges.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceDell ThinOS 2408 and prior contains an improper permissions vulnerability that allows a low-privileged local attacker to escalate privileges. The vulnerability stems from incorrectly configured file or service permissions that permit unauthorized access to privileged resources or functionality.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 2408CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check ThinOS versionAccess the ThinOS administration interface or run the system information command to identify the installed ThinOS version numberAffected if The installed version is 2408 or prior (<= 2408)
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Identify critical system binaries and executablesLocate all executable files in system directories such as /system, /opt, and /usr/bin that are owned by root or run with elevated privilegesAffected if Multiple privileged executables exist in the environment
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Inspect file permissions on system binariesUse file permission tools (ls -la or equivalent) to examine read, write, and execute permissions on critical system binaries and scriptsAffected if Any system binary or script that should be privileged has world-writable permissions or is readable/writable by low-privileged users
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Review service configurationsExamine configuration files for all running services, particularly those running as root or system, to identify any that allow unauthorized user accessAffected if Service configuration files are readable by unprivileged users or permit unauthorized access to service controls
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Check for unintended file ownership or group membershipAudit file ownership to identify critical system files owned by non-administrative users or groupsAffected if Any critical system files or services are owned by or accessible to low-privileged local users
You are affected if running ThinOS version 2408 or prior AND critical system files or services have permissive access controls that allow low-privileged local users to modify or execute privileged resources.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply the Dell security update for ThinOS 2409 or later that addresses the improper permissions issue. Verify that all critical system files and services have restrictive permissions configured according to Dell hardening guidelines.
- Consultation4.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,440.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-27688 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-27688 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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