CVE-2025-62877
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 · uneditedProjects using the SUSE Virtualization (Harvester) environment may expose the OS default ssh login password if they are using the 1.5.x or 1.6.x interactive installer to either create a new cluster or add new hosts to an existing cluster. The environment is not affected if the PXE boot mechanism is utilized along with the Harvester configuration setup.
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 · high confidenceSUSE Harvester versions 1.5.x and 1.6.x expose the OS default SSH login password in plaintext when using the interactive installer to create new clusters or add hosts. This credential exposure occurs during the installation process and affects systems deployed via the interactive installer but not those using PXE boot.
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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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 installed Harvester versionRun 'harvester-host-manager version' or check /var/lib/harvester/VERSION file, or look for Harvester in package manager listingsAffected if Version is 1.5.x or 1.6.x
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Determine installation method usedReview installation logs, check for presence of /var/lib/harvester/.install_type file, or examine PXE configuration if used. Interactive installer creates specific logs in /var/log/harvester-install/Affected if Installation was performed using interactive installer rather than PXE boot with Harvester configuration
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Inspect installation logs for credential exposureSearch installation logs in /var/log/harvester-install/ or /var/log/install/ for patterns like 'password', 'ssh', or default credential strings during the setup phaseAffected if Logs contain default SSH password or credential strings visible in plaintext during installation output
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Verify if SSH credentials were rotated post-installCheck with system administrator whether default SSH credentials have been changed since installation, or review credential change logs/audit recordsAffected if Default SSH credentials from installation time remain in use and were never rotated
Environment is affected if Harvester 1.5.x or 1.6.x was installed using the interactive installer method, as this is the only scenario where the default SSH password gets exposed during installation.
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 · scopedMigrate to PXE boot installation method for Harvester deployments, or apply vendor patches when released. Existing installations should rotate default SSH credentials immediately.
Harvester 1.7.0 or later
- Upgrade Harvester to version 1.7.0 or later, which contains the fix for this vulnerability
- If upgrade is not immediately possible, use the PXE boot mechanism with Harvester configuration setup instead of the interactive installer as a workaround
- For existing clusters installed with interactive installer in 1.5.x or 1.6.x, consider redeploying using PXE boot or upgrading to 1.7.x when available
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-62877 — 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-2025-62877 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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