CVE-2011-1051
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 COFF/EPOC/EXPLOAD input file loaders in Hex-Rays IDA Pro 5.7 and 6.0 has unknown impact and attack vectors related to memory allocation.
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 confidenceInteger overflow vulnerability in the COFF/EPOC/EXPLOAD input file loaders of IDA Pro 5.7 and 6.0. The overflow occurs during memory allocation calculations when parsing these specific binary file formats, potentially leading to heap corruption or arbitrary memory write conditions.
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= 5.7= 6.0CVSS 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
- 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 the installed IDA Pro versionOpen IDA Pro and go to Help > About, or check the ida executable file properties. Alternatively, run 'ida' from command line with -v flag if available, or check the installation directory for version information.Affected if The version is 5.7 or 6.0 specifically (not patched later versions)
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Locate the COFF loader moduleCheck the 'loaders' subdirectory within the IDA Pro installation folder for files named 'coff' or 'coff.lr' (or similar loader file extension).Affected if The COFF loader exists in the loaders directory (the vulnerability is in this component)
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Locate the EPOC loader moduleCheck the 'loaders' subdirectory within the IDA Pro installation folder for files named 'epoc' or 'epoc.lr'.Affected if The EPOC loader exists in the loaders directory (the vulnerability is in this component)
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Locate the EXPLOAD loader moduleCheck the 'loaders' subdirectory within the IDA Pro installation folder for files named 'expload' or 'expload.lr'.Affected if The EXPLOAD loader exists in the loaders directory (the vulnerability is in this component)
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Verify if COFF/EPOC/EXPLOAD file loading is possibleAttempt to open a COFF, EPOC, or EXPLOAD format binary file in IDA Pro, or check if these file types are recognized when opening files.Affected if These file formats are recognized and loadable in the IDA Pro instance
You are affected if you have IDA Pro version 5.7 or 6.0 installed AND have the COFF, EPOC, or EXPLOAD loaders present and operational in your environment.
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 patched version of IDA Pro. Until patched, avoid loading untrusted or unknown COFF/EPOC/EXPLOAD files in affected versions.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-1051 — 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-2011-1051 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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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.
- 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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