dbcve.org
Claris EmailerApplication · Apple

CVE-2001-1531

HIGH · 7.5 CVSS v2.0 Published 2001-12-31
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
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
Buffer overflow in Claris Emailer 2.0v2 allows remote attackers to cause a denial of service and possibly execute arbitrary code via an email attachment with a long filename.

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

Buffer overflow vulnerability in Claris Emailer 2.0v2 when processing email attachments with excessively long filenames, allowing remote attackers to crash the application (denial of service) or potentially achieve arbitrary code execution.

MitigationMigrate from Claris Emailer 2.0v2 to a supported modern email client, as this legacy software from the early 2000s is no longer maintained; avoid opening attachments from untrusted sources if continued use is unavoidable.

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
Claris EmailerApplication
Affected:= 2.0v2

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
Partial
Integrity
Partial
Availability
Partial

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

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 Claris Emailer version
    Check installed application version - typically in the application About menu or the application's bundle info. On classic Mac OS, select Claris Emailer and choose Get Info. On Mac OS X, right-click and select Get Info to view version.
    Affected if Installed version is exactly 2.0v2
  2. Confirm application is configured for email
    Check if Claris Emailer is set as the default email client or is actively used for receiving/processing email. Look for email accounts configured within the application.
    Affected if Claris Emailer 2.0v2 is configured as an active email client with accounts set up
  3. Check for running process
    Verify if Claris Emailer process is currently running. On Mac OS 9, check in the Finder or using Activity Monitor on OS X. On classic Mac OS, check running applications in the Apple menu.
    Affected if Claris Emailer 2.0v2 is currently running and processing email

A user is affected if they have Claris Emailer version 2.0v2 installed, configured as an active email client, and the application is running to process email attachments.

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

Migrate from Claris Emailer 2.0v2 to a supported modern email client, as this legacy software from the early 2000s is no longer maintained; avoid opening attachments from untrusted sources if continued use is unavoidable.

Fix this in Claris Emailer Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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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-2001-1531 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