E11 FirmwareOperating system · Akuvox

CVE-2023-0354

CRITICAL · 9.1 CVSS v3.1 Published 2023-03-13
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
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
The Akuvox E11 web server can be accessed without any user authentication, and this could allow an attacker to access sensitive information, as well as create and download packet captures with known default URLs.

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 confidence

The Akuvox E11 web server contains an authentication bypass vulnerability where the entire web interface can be accessed without any credentials. This allows unauthenticated attackers to view sensitive system information and abuse built-in packet capture functionality using known default URL paths to create and download network captures.

MitigationImmediately restrict network access to the E11 device using firewall rules or network segmentation, and contact Akuvox for a firmware patch that implements proper authentication. If no patch is available, consider replacing the device.

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
E11 FirmwareOperating system
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
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 checks

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

  1. Confirm device is Akuvox E11
    Identify the device by checking the product label, DHCP vendor fingerprint, or by accessing the web interface and examining the page header or login page for 'Akuvox' branding. The E11 is a VoIP door phone/intercom device.
    Affected if The device is an Akuvox E11 unit (all firmware versions are affected)
  2. Verify web interface is network-accessible
    Attempt to reach the device's web interface via HTTP/HTTPS from a network-connected host. Check if the device responds on common web ports (80, 443, 8080).
    Affected if The web interface is reachable on the network
  3. Test authentication bypass on web paths
    Access common administrative paths WITHOUT providing any credentials: '/', '/cgi-bin/luci', '/cgi-bin/admin', or '/cgi-bin/webmain'. Observe if the interface loads or returns sensitive system information without a login prompt.
    Affected if The web interface loads or displays system information without requiring any authentication credentials
  4. Check for unauthenticated packet capture access
    Attempt to access known default URL paths for packet capture functionality (such as '/cgi-bin/pcap.cgi' or similar capture-related endpoints) without any authentication. Verify if network capture files can be created or downloaded.
    Affected if Packet capture functionality or network capture files are accessible without authentication

If the device is an Akuvox E11 and its web interface or sensitive functions like packet capture are accessible without any credentials, the environment is affected by CVE-2023-0354.

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

Immediately restrict network access to the E11 device using firewall rules or network segmentation, and contact Akuvox for a firmware patch that implements proper authentication. If no patch is available, consider replacing the device.

Fix this in E11 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,690
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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-2023-0354 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
  • No spam, self-promotion, credentials, or personal data