Instant MessengerApplication · Aol

CVE-2007-3437

HIGH · 7.8 CVSS v2.0 Published 2007-06-27
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
87/100
Remediation priority · High
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
AOL Instant Messenger (AIM) 6.1.32.1 on Windows XP allows remote attackers to cause a denial of service (application crash) via a malformed header value in a SIP INVITE message, a different vulnerability than CVE-2007-3350.

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

AOL Instant Messenger 6.1.32.1 on Windows XP contains a vulnerability in its SIP (Session Initiation Protocol) stack where parsing a malformed header value within a SIP INVITE message triggers an application crash, resulting in denial of service.

MitigationSince AIM 6.1.32.1 is a 2007 release and the product has been discontinued, the primary remediation is to migrate to alternative messaging platforms or obtain a patched version if available; otherwise, network-level filtering of malformed SIP traffic can provide workarounds.

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
Instant MessengerApplication
Affected:= 6.1.32.1

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
None
Integrity
None
Availability
Complete

AV:N/AC:L/Au:N/C:N/I:N/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. Verify AIM installation
    Check if AOL Instant Messenger is installed on the system by looking in Program Files for the AIM folder, or check the Windows registry under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall for an AOL Instant Messenger entry.
    Affected if AIM version 6.1.32.1 is found installed on the system.
  2. Confirm exact AIM version
    Locate the aim.exe executable (typically in C:\Program Files\AOL Instant Messenger or C:\Program Files\AIM), right-click on it, select Properties, and check the File Version on the Details tab.
    Affected if The file version shows exactly 6.1.32.1.
  3. Check for SIP component presence
    Look for SIP-related DLL files in the AIM installation directory, such as sip.dll or similar SIP handling files that handle Session Initiation Protocol functionality.
    Affected if SIP stack components exist within the AIM installation directory, indicating the vulnerable feature is present.
  4. Determine if AIM SIP service is active
    Open Task Manager and check if AIM.exe is currently running, or check Windows services for any AIM-related service that handles SIP communications.
    Affected if AIM is actively running with SIP functionality enabled, making the application reachable via network.

You are affected only if AOL Instant Messenger version 6.1.32.1 is installed AND the SIP feature component is present and potentially accessible on the network.

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

Since AIM 6.1.32.1 is a 2007 release and the product has been discontinued, the primary remediation is to migrate to alternative messaging platforms or obtain a patched version if available; otherwise, network-level filtering of malformed SIP traffic can provide workarounds.

Fix this in Instant Messenger Scoped from the published advisory
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,440
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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-2007-3437 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
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