CVE-2025-41670
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 · uneditedA local user with low privileges may be able to influence the behavior of a privileged system service by manipulating configuration or application-related files located in user-writable areas of the filesystem. The affected service processes data from locations that are not sufficiently protected against modification by low-privileged users. As the service runs with elevated privileges, successful exploitation may result in a local privilege escalation.
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 confidenceA low-privilege local user can manipulate configuration files located in user-writable directories that are subsequently processed by a privileged system service. Since the service runs with elevated privileges and does not properly validate file ownership or permissions before processing, an attacker can modify these config files to inject malicious behavior and achieve local privilege escalation.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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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Identify privileged services that read configuration filesList running services/processes that run with elevated privileges (root/SYSTEM) and examine which config files they access. Use commands like 'ps -eo user,comm,pid' and 'lsof' or 'auditd' to trace file access patterns.Affected if A privileged service reads config files from directories that are writable by low-privilege users
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Locate configuration files in user-writable directoriesSearch for configuration files in common user-writable paths such as /tmp, /var/tmp, /home/*/, or any directory with world-writable permissions. Use 'find / -perm -002 -name "*.conf" -o -name "*.cfg"' to identify writable config files.Affected if Configuration files exist in directories where unprivileged users have write access
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Verify directory permissions on config locationsCheck the permissions of directories containing configuration files using 'ls -la' or 'getfacl'. Focus on directories that are owned by root but have permissive write permissions (e.g., 777).Affected if Config directories are owned by root but allow write access to non-root users (permissions like 777, 775 with group-writable by user groups)
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Inspect service configuration file processingExamine the service binary or its configuration to determine which config files it reads and from which paths. Use 'strings', 'strace', or review service documentation.Affected if The service processes config files from paths accessible to unprivileged users without validating file ownership or permissions first
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Compare installed version to any known affected rangesQuery the installed software version using the package manager (dpkg, rpm, yum) or the application's --version flag, then compare against any published vulnerable version ranges from official security advisories.Affected if The installed software version falls within a vulnerable version range if such information exists
A user is affected if a privileged service in their environment processes configuration files located in directories writable by non-root users without validating file ownership or permissions first.
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 dataRestrict write permissions on configuration directories and ensure privileged services validate file ownership/permissions before processing, or relocate sensitive configuration files to protected locations with appropriate access controls.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-41670 — 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-2025-41670 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
- No spam, self-promotion, credentials, or personal data