CVE-2025-59459
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 · uneditedAn attacker that gains SSH access to an unprivileged account may be able to disrupt services (including SSH), causing persistent loss of availability.
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 confidenceAn attacker who obtains SSH access to a low-privilege user account can disrupt critical services, including the SSH service itself, resulting in persistent denial of service. This appears to be a post-authentication vulnerability where an unprivileged user can cause resource exhaustion, service configuration corruption, or otherwise render the SSH service unavailable in a way that survives restart.
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< 7.1.1CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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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Confirm device modelIdentify the exact model number of the Sick device in your environment. This CVE specifically affects the Tloc100 100 hardware model.Affected if The device model is not Tloc100 100, this CVE does not apply.
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Check firmware versionAccess the device admin interface or use the appropriate command to retrieve the installed firmware version. Compare against the affected range.Affected if Firmware version is 7.1.1 or higher, the vulnerability is patched.
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Verify SSH service accessibilityDetermine if the SSH service is enabled and reachable on the device. This is a post-authentication vulnerability, so SSH must be accessible for exploitation.Affected if SSH is disabled and not accessible externally or internally, the attack surface may be reduced.
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Review SSH user accountsEnumerate all user accounts configured for SSH access on the device. Note any low-privilege or service accounts.Affected if No low-privilege SSH accounts exist, exploitation may still be possible depending on the vulnerability nature.
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Inspect service stabilityCheck device logs, SSH service status, and monitor for unexpected service restarts or failures that could indicate exploitation.Affected if SSH service and other critical services are stable with no unexplained failures, no active exploitation is evident.
If you have a Sick Tloc100 100 device running firmware version below 7.1.1 with SSH service enabled and accessible, your environment may be affected by this CVE.
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.
dbcve · scoped7.1.1
Restrict SSH access to trusted users only, enforce key-based authentication with strong controls, implement rate limiting and connection thresholds, and monitor for unusual service restarts or failures.
Tloc100 Firmware 7.1.1 or later
- Check the current firmware version of the Tloc100 device through the web interface or CLI
- Download firmware version 7.1.1 or later from the official SICK website (sick.com)
- Access the device administration interface and navigate to the firmware update section
- Upload the firmware file and initiate the upgrade process
- Allow the device to reboot and complete the firmware installation
- Verify the new firmware version is 7.1.1 or later after reboot
- Test that SSH and other services function normally
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-59459 — 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-2025-59459 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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