CVE-2025-23267
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 · uneditedNVIDIA Container Toolkit for all platforms contains a vulnerability in the update-ldcache hook, where an attacker could cause a link following by using a specially crafted container image. A successful exploit of this vulnerability might lead to data tampering and denial of service.
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 confidenceNVIDIA Container Toolkit contains a link following vulnerability in the update-ldcache hook. An attacker can craft a malicious container image containing specially crafted symbolic links that the update-ldcache hook will follow during container execution, potentially allowing data tampering and denial of service.
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
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality
- None
- Integrity
- Low
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/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 if NVIDIA Container Toolkit is installedRun 'nvidia-container-toolkit --version' or check for package installed via 'dpkg -l | grep nvidia-container-toolkit' or 'rpm -qa | grep nvidia-container-toolkit'Affected if Toolkit is not installed - not affected; if installed, continue to version check
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Determine installed version of NVIDIA Container ToolkitRun 'nvidia-container-toolkit --version' and compare against any available version information from NVIDIAAffected if Any installed version may be affected - continue to hook configuration check
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Identify if update-ldcache hook is configuredCheck for hook configuration files in /etc/nvidia-container-toolkit/ or look for update-ldcache in the toolkit configuration directoryAffected if Hook is not configured - likely not affected; if configured, continue to check for symlink exposure
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Check container runtime hook configurationInspect container runtime configuration (Docker or containerd config) for nvidia-container-toolkit hook definitions that include update-ldcacheAffected if Hooks point to update-ldcache script and containers run untrusted images - potentially affected
Environment is affected if NVIDIA Container Toolkit is installed with update-ldcache hook enabled and untrusted container images can be run, as specially crafted symbolic links in such images could be followed by the hook.
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 container image sources to trusted registries, implement container image scanning for symlink anomalies, and apply vendor patches when available. Consider container execution policies that limit hook execution scope.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-23267 — 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-2025-23267 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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