CVE-2006-6627
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 · uneditedInteger overflow in the packed PE file parsing implementation in BitDefender products before 20060829, including Antivirus, Antivirus Plus, Internet Security, Mail Protection for Enterprises, and Online Scanner; and BitDefender products for Microsoft ISA Server and Exchange 5.5 through 2003; allows remote attackers to execute arbitrary code via a crafted file, which triggers a heap-based buffer overflow, aka the "cevakrnl.xmd 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 · high confidenceInteger overflow in BitDefender's packed PE (Portable Executable) file parsing engine (cevakrnl.xmd) allows a remote attacker to execute arbitrary code via a crafted malicious file. The overflow occurs during size calculation, resulting in a heap-based buffer overflow when the product scans the malicious file.
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= isa_server= ms_exchange_5.5= ms_exchange_2000= ms_exchange_2003all versions= plusall versions= enterprisesall versionsCVSS 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
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/C:C/I:C/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 checksWork through these to decide whether this CVE applies to you.
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Identify installed BitDefender productCheck system for installed BitDefender software by reviewing installed programs in Control Panel or querying the registry at HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall for BitDefender entriesAffected if No BitDefender product is found then the system is not affected by this specific CVE
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Determine BitDefender versionLocate the installed BitDefender version from the program files directory, About dialog, or registry key under HKLM\SOFTWARE\Softwin\BitDefenderAffected if Version is unknown, unpatched, or predates the 20060829 patch release - compare against the affected product versions listed in the CVE
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Verify cevakrnl.xmd component presenceSearch for the file cevakrnl.xmd in the BitDefender installation directory (commonly in C:\Program Files\BitDefender\ or similar path) - this is the vulnerable PE parsing engine moduleAffected if The cevakrnl.xmd file exists and belongs to an unpatched version, indicating the vulnerable parsing engine is present
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Confirm PE file scanning is enabledCheck BitDefender scan configuration settings to verify that real-time or on-demand scanning of executable files is enabled - the vulnerability triggers when the engine scans a crafted PE fileAffected if PE file scanning is active and the cevakrnl.xmd component is unpatched, the system is vulnerable to heap overflow during malicious file scan
A system is affected if it runs any unpatched BitDefender product version containing the cevakrnl.xmd module with PE file scanning enabled.
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 dataApply BitDefender updates/patches released after 20060829, or upgrade to current supported versions of affected BitDefender products. For legacy systems (ISA Server, Exchange 5.5-2003), consider retirement or compensating controls if patches are unavailable.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2006-6627 — 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-2006-6627 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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