CVE-2026-40636
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 ECS versions 3.8.1.0 through 3.8.1.7 and Dell ObjectScale versions prior to 4.3.0.0, contains a use of hard-coded credentials vulnerability. An unauthenticated attacker with local access could potentially exploit this vulnerability, leading to filesystem access for attacker.
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 confidenceDell ECS versions 3.8.1.0-3.8.1.7 and Dell ObjectScale versions prior to 4.3.0.0 contain hardcoded credentials embedded in the software. An unauthenticated attacker with local access to the system can exploit these hardcoded credentials to gain unauthorized filesystem access.
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>= 3.8.1.0, < 4.3.0.0< 4.3.0.0CVSS 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 installed Dell ECS or ObjectScale versionUse the product's admin interface, CLI tool, or check system information files to retrieve the currently installed version numberAffected if The version is 3.8.1.0 through 3.8.1.7 for ECS, or any version below 4.3.0.0 for ObjectScale
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Check for presence of hardcoded credentialsSearch configuration files, scripts, or embedded credential storage locations for any default or static credentials that were not set by the administrator during deploymentAffected if Any hardcoded or default credentials are found in the software installation that were not intentionally configured by an administrator
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Verify filesystem access controlsReview filesystem permissions and access control lists to determine if unauthorized access to files or directories is possible using non-administrative accountsAffected if Filesystem permissions allow access beyond what should be permitted for the authenticated user context
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Test for unauthorized filesystem accessIf local access is available, attempt to access filesystem locations using any default or embedded accounts discovered in the systemAffected if Any default or embedded account successfully gains filesystem access beyond its intended scope
A user is affected if their Dell ECS version falls between 3.8.1.0 and 3.8.1.7, or their ObjectScale version is below 4.3.0.0, and hardcoded credentials exist that enable unauthorized filesystem access.
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 · scoped4.3.0.0
Update to Dell ECS version 3.8.1.8 or later, or ObjectScale version 4.3.0.0 or later. Review and rotate any hardcoded credentials if they were used elsewhere, and verify filesystem permissions are properly configured after patching.
Dell ECS or ObjectScale version 4.3.0.0 or later
- 1. Back up all current ECS or ObjectScale configuration data and storage metadata before initiating any upgrade
- 2. Review Dell ECS or ObjectScale upgrade documentation for your current version to ensure compatibility with version 4.3.0.0
- 3. Schedule a maintenance window as upgrade will require system downtime
- 4. Upgrade Dell ECS from version 3.8.1.0-3.8.1.7 to version 4.3.0.0 or later, following official upgrade procedures
- 5. If running Dell ObjectScale, upgrade to version 4.3.0.0 or later
- 6. After upgrade, verify the hard-coded credentials vulnerability is resolved by reviewing system security configuration
- 7. Change any default credentials that may have been hard-coded and implement proper credential management
- 8. Validate that all services are running correctly post-upgrade
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-40636 — 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-2026-40636 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