Voice Mail SystemApplication · Alcatel Lucent

CVE-2007-1822

HIGH · 10.0 CVSS v2.0 Published 2007-04-02
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
Alcatel-Lucent Lucent Technologies voice mail systems allow remote attackers to retrieve or remove messages, or reconfigure mailboxes, by spoofing Calling Number Identification (CNID, aka Caller ID).

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

The Alcatel-Lucent Lucent voice mail system trusts Caller ID (CNID) information for authentication, allowing remote attackers to spoof their calling number and gain unauthorized access to voicemail mailboxes. This enables retrieval, deletion of messages, and reconfiguration of mailbox settings without proper credentials.

MitigationImplement multi-factor authentication (e.g., PIN/password) for voicemail access rather than relying solely on Caller ID verification, and configure network-level controls to reject spoofed calling numbers.

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
Voice Mail SystemApplication
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. Identify if Alcatel Lucent Voice Mail System is deployed
    Check your telecommunications infrastructure inventory or run: snmpwalk -v2c -c public <device_ip> sysDescr to query the device via SNMP, or access the voicemail administration interface and check the system information page
    Affected if The system is running Alcatel Lucent Voice Mail System
  2. Check voicemail authentication configuration
    Access the voicemail administration panel (typically via web interface on port 8080 or 443), navigate to Security or Authentication settings, and inspect whether Caller ID (CNID) verification is enabled as a sole or primary authentication method
    Affected if Caller ID-only authentication is enabled without requiring a PIN or password
  3. Verify if PIN or password is required for mailbox access
    Attempt to access a test mailbox or review the mailbox configuration settings to confirm whether a PIN or password must be entered in addition to Caller ID verification
    Affected if No secondary PIN or password authentication is required - Caller ID alone grants access
  4. Inspect network configuration for calling number validation
    Check VoIP gateway or PBX configuration for CNID validation settings: review SIP headers (From/PAI fields), ISDN CNID settings on PRI circuits, or H.323 calling party information to determine if spoofed calling numbers are being accepted
    Affected if Network equipment is configured to accept calling numbers without verification (e.g., no SIP header authentication, no CNID screening enabled)

A user is affected if their Alcatel Lucent Voice Mail System relies on Caller ID alone for authentication without requiring a PIN, password, or network-level calling number validation.

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

Implement multi-factor authentication (e.g., PIN/password) for voicemail access rather than relying solely on Caller ID verification, and configure network-level controls to reject spoofed calling numbers.

Fix this in Voice Mail System Scoped from the published advisory
  • Consultation12.0 h
  • Implementation24.0 h
  • Testing12.0 h
  • Review / QA8.0 h
56.0 hours of engineering $9,960
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Scan for this in your stack

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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-2007-1822 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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