CVE-2000-0036
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 · uneditedOutlook Express 5 for Macintosh downloads attachments to HTML mail without prompting the user, aka the "HTML Mail Attachment" vulnerability.
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 confidenceOutlook Express 5 for Macintosh automatically downloads attachments embedded in HTML email messages without prompting the user for confirmation, allowing potentially malicious attachments to be saved and executed without user interaction.
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= 4.5= 5.0CVSS 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
- Partial
- Availability
- None
AV:N/AC:L/Au:N/C:N/I:P/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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Verify Outlook Express for Macintosh is installedCheck the Applications folder or system for the presence of Microsoft Outlook Express. On Mac OS 9 or earlier, look in the System Folder or Applications folder for the Outlook Express icon.Affected if Outlook Express 5 for Macintosh is present on the system
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Confirm the installed version is 5.0Open Outlook Express and navigate to the About section, typically found under the application menu or Help > About. Compare the version number shown to 5.0.Affected if The installed version is exactly 5.0 (version 5.0)
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Check if HTML email rendering is enabledIn Outlook Express preferences, look for Mail or Message settings. Verify whether the option to display HTML messages is enabled or set to allow HTML content.Affected if HTML email rendering is enabled in the mail preferences
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Verify automatic attachment handling settingsIn Outlook Express preferences under Mail or Attachments settings, check if there is an option for automatically saving or displaying attachments embedded in HTML messages. This may be found in security or handling preferences.Affected if Automatic download or saving of embedded attachments is enabled without user prompt
A user is affected if they have Outlook Express 5.0 for Macintosh installed with HTML email rendering and automatic attachment handling enabled, allowing unsandboxed attachment execution from received HTML emails.
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 dataUsers should upgrade to a newer version of Outlook Express or switch to a modern, supported email client, as Outlook Express 5 for Macintosh is legacy software from 2000. Users should also avoid opening attachments from untrusted sources.
- Consultation1.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2000-0036 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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