Accessnow ServerApplication · Ericom

CVE-2014-3913

HIGH · 10.0 CVSS v2.0 Published 2014-06-04
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
High EPSS Public exploit Remotely reachable No privileges Zero-click

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 · unedited
Stack-based buffer overflow in AccessServer32.exe in Ericom AccessNow Server allows remote attackers to execute arbitrary code via a request for a non-existent file.

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 confidence

A stack-based buffer overflow vulnerability exists in AccessServer32.exe in Ericom AccessNow Server. The vulnerability is triggered when the server processes a request for a non-existent file, which causes a buffer overflow on the stack, allowing remote attackers to execute arbitrary code.

MitigationApply the vendor patch for Ericom AccessNow Server when available. If no patch exists, implement network segmentation to limit exposure and consider deploying a WAF to filter malformed requests.

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
Accessnow ServerApplication
Affected:all versions

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
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:N/C:C/I:C/A:C

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 checks

Work through these to decide whether this CVE applies to you.

  1. Locate AccessServer32.exe on the system
    Search for the file AccessServer32.exe on the host system using file system search or by checking common installation directories for Ericom AccessNow Server
    Affected if The file AccessServer32.exe is present on the system, indicating Ericom AccessNow Server is installed
  2. Verify Ericom AccessNow Server installation
    Check installed programs or the program files directory for Ericom AccessNow Server to confirm the product is installed
    Affected if Ericom AccessNow Server is installed on the machine
  3. Confirm the service is running
    Check running processes or services list for AccessServer32.exe or the Ericom AccessNow Server service to determine if the vulnerable component is active
    Affected if AccessServer32.exe is running as a process or the Ericom AccessNow Server service is active
  4. Assess network exposure
    Review firewall rules, network configuration, and listening ports to determine if the AccessNow Server is accessible from network segments outside the trusted zone
    Affected if The Ericom AccessNow Server is reachable from untrusted network segments or the internet

If AccessServer32.exe from Ericom AccessNow Server is present and running on the system with network exposure, the environment is affected by this vulnerability since all versions are impacted.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the vendor patch for Ericom AccessNow Server when available. If no patch exists, implement network segmentation to limit exposure and consider deploying a WAF to filter malformed requests.

Fix this in Accessnow Server Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2014-3913 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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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