Lotus NotesApplication · Ibm

CVE-2007-6593

HIGH · 8.8 CVSS v2.0 Published 2007-12-28
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
97/100
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
Multiple stack-based buffer overflows in l123sr.dll in Autonomy (formerly Verity) KeyView SDK, as used by IBM Lotus Notes 5.x through 8.x, allow user-assisted remote attackers to execute arbitrary code via the (1) Length and (2) Value fields for certain Types in a Lotus 1-2-3 (.123) file in the Worksheet File (WKS) format, as demonstrated by a file with a crafted SRANGE record, a different vulnerability than CVE-2007-5909.

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

Stack-based buffer overflow in l123sr.dll (Autonomy KeyView SDK) allows arbitrary code execution when IBM Lotus Notes 5.x-8.x parses a malicious Lotus 1-2-3 (.123) file. The vulnerability is triggered via crafted Length and Value fields in an SRANGE record within WKS format files.

MitigationApply vendor patches from IBM/Lotus Notes to obtain an updated KeyView SDK with patched l123sr.dll, or upgrade to a Lotus Notes version beyond 8.x that includes the fix.

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
Lotus NotesApplication
Affected:= 5.0= 6.0= 6.5= 7.0= 8.0

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
M
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
None

AV:N/AC:M/Au:N/C:C/I:C/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 checks

Work through these to decide whether this CVE applies to you.

  1. Verify IBM Lotus Notes installation
    Locate the IBM Lotus Notes executable (notes.exe) on the system and confirm it is present
    Affected if Lotus Notes is not installed, the system is not affected by this CVE
  2. Check installed Lotus Notes version
    Run 'notes.exe -version' or check the version property of the notes.exe file in the installation directory
    Affected if The installed version is 5.0, 6.0, 6.5, 7.0, or 8.0, indicating it falls within the affected version range
  3. Locate the vulnerable l123sr.dll component
    Search for the file l123sr.dll within the Lotus Notes installation directory structure, particularly within KeyView SDK subdirectories
    Affected if The l123sr.dll file exists in the Lotus Notes installation, confirming the vulnerable component is present
  4. Confirm KeyView SDK is present
    Identify whether the Autonomy KeyView SDK components are installed as part of the Lotus Notes installation by checking for KeyView-related directories or DLLs
    Affected if The KeyView SDK is present and includes the vulnerable l123sr.dll, making parsing of Lotus 1-2-3 files potentially exploitable

The environment is affected if IBM Lotus Notes versions 5.0 through 8.0 are installed with the vulnerable l123sr.dll component from the Autonomy KeyView SDK present and capable of parsing .123 files.

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

Apply vendor patches from IBM/Lotus Notes to obtain an updated KeyView SDK with patched l123sr.dll, or upgrade to a Lotus Notes version beyond 8.x that includes the fix.

Fix this in Lotus Notes Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,080
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Scan for this in your stack

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dbcve dependency scanner

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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-2007-6593 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