CVE-2003-0336
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 · uneditedQualcomm Eudora 5.2.1 allows remote attackers to read arbitrary files via an email message with a carriage return (CR) character in a spoofed "Attachment Converted:" string, which is not properly handled by Eudora.
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 confidenceQualcomm Eudora 5.2.1 email client has a path traversal vulnerability where specially crafted email messages containing a carriage return (CR) character within a spoofed 'Attachment Converted:' header string are improperly processed. This allows remote attackers to read arbitrary files from the victim's file system by tricking Eudora into interpreting the CR character as a path delimiter.
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= 5.2.1CVSS 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
- None
- Availability
- None
AV:N/AC:L/Au:N/C:P/I:N/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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Identify if Qualcomm Eudora is installedCheck for Eudora installation by searching for 'Eudora.exe' in common program directories (e.g., C:\Program Files\Qualcomm\Eudora\) or review installed programs in Add/Remove ProgramsAffected if Eudora email client is found on the system
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Confirm the exact installed versionRight-click on Eudora.exe, select Properties, then view the Version tab to determine the file version, or launch Eudora and check Help > About EudoraAffected if The installed version is exactly 5.2.1
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Check if Eudura is configured to receive and process emailOpen Eudora and verify a mailbox is configured (check Tools > Options > Incoming Mail servers) or examine if Eudora has any mailboxes present in its mail directoryAffected if Eudora has active mailbox accounts configured and is set to retrieve email
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Verify attachment handling is enabledCheck Eudora's attachment settings by navigating to Tools > Options > Attachments to confirm attachment processing is not disabledAffected if Attachment handling is enabled and Eudora processes incoming email with attachments
A user is affected only if Qualcomm Eudora version 5.2.1 is installed with active mailbox accounts and attachment processing enabled, making it susceptible to path traversal when processing specially crafted emails with spoofed 'Attachment Converted:' headers.
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 dataUpgrade to a supported email client version as Eudora 5.2.1 is end-of-life; avoid opening email attachments from untrusted sources as a temporary workaround.
- Consultation3.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2003-0336 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
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-2003-0336 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
- No spam, self-promotion, credentials, or personal data