CVE-2017-4986
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 · uneditedEMC ESRS VE 3.18 or earlier contains Authentication Bypass that could potentially be exploited by malicious users to compromise the affected system.
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 confidenceEMC ESRS VE (Enterprise Secure Remote Services Virtual Edition) versions 3.18 and earlier contain an authentication bypass vulnerability. This flaw allows malicious users to circumvent the authentication mechanism and potentially gain unauthorized access to the affected system, compromising its security integrity.
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= 3.18CVSS 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
- Low
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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 if EMC ESRS VE is installedLocate the EMC ESRS Virtual Edition installation on the system. Check for ESRS VE directories, services, or the management interface accessible via browser or network port.Affected if The product EMC ESRS VE is present on the system
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Determine the installed ESRS VE versionAccess the ESRS VE management interface or check system files for the version number. This is typically visible in the product GUI, About section, or in version files within the installation directory.Affected if The installed version is 3.18 or any version earlier than 3.18
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Verify the authentication interface is accessibleConfirm the ESRS VE web portal or login page is reachable. This may be on port 443, 8443, or a custom port configured during installation. Attempt to access the login page over HTTP/HTTPS.Affected if The ESRS VE authentication interface is exposed and reachable on the network
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Check if external network access is permittedReview firewall rules, network segmentation, and access control lists to determine if the ESRS VE management interface is accessible from untrusted networks or the internet.Affected if The ESRS VE system can be reached from external or untrusted networks without adequate segmentation
If the installed EMC ESRS VE version is 3.18 or earlier and the authentication interface is network-accessible, the environment is affected by this authentication bypass vulnerability.
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 dataUpgrade EMC ESRS VE to a version newer than 3.18. If immediate upgrading is not feasible, implement network segmentation and restrict external access to the ESRS VE system to reduce the attack surface while planning the upgrade.
- 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-2017-4986 — 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-2017-4986 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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