CVE-2021-38105
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 · uneditedIPPP82.FLT in Corel Presentations 2020 20.0.0.200 is affected by an Out-of-bounds Read vulnerability when parsing a crafted file. An unauthenticated attacker could leverage this vulnerability to access unauthorized system memory in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious PPT file. This is different from CVE-2021-38102.
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 confidenceIPPP82.FLT, a file filter component in Corel Presentations 2020, contains an out-of-bounds read vulnerability when parsing specially crafted PPT files. An attacker can exploit this to read unauthorized system memory in the context of the current user by tricking a victim into opening a malicious presentation 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= 20.0.0.200CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/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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Verify Corel Presentations 2020 is installedOpen Windows Control Panel > Programs and Features, or use PowerShell: Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*' | Select-Object DisplayName, DisplayVersion | Where-Object {$_.DisplayName -like '*Corel Presentations*2020*'}Affected if Corel Presentations 2020 appears in installed programs with version 20.0.0.200
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Confirm the exact version numberRight-click the installed Corel Presentations 2020 entry in Programs and Features and select Properties, or check the version via file properties of the main executable (usually in C:\Program Files\Corel\Presentations2020\)Affected if Version is exactly 20.0.0.200
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Locate the IPPP82.FLT file filter componentSearch for IPPP82.FLT in the Corel installation directory, typically found under C:\Program Files\Corel\Presentations2020\FileFilters\ or C:\Program Files (x86)\Corel\Presentations2020\FileFilters\Affected if The file IPPP82.FLT exists in the Corel Presentations 2020 installation folder
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Verify the file filter is active or loadedOpen any PPT file in Corel Presentations 2020 and monitor process activity using Process Monitor (ProcMon) filtering by IPPP82.FLT, or check recent file access logs for .ppt/.pptx file operationsAffected if The IPPP82.FLT filter is invoked when opening PPT files
You are affected if Corel Presentations 2020 version 20.0.0.200 is installed and the IPPP82.FLT file filter component is present and used to open PPT files.
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 vendor patches from Corel when available; until then, enforce user awareness training to avoid opening PPT files from untrusted sources and consider endpoint detection rules for anomalous file parsing behavior.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-38105 — 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-2021-38105 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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