CVE-2020-9704
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 · uneditedAdobe Acrobat and Reader versions 2020.009.20074 and earlier, 2020.001.30002, 2017.011.30171 and earlier, and 2015.006.30523 and earlier have a buffer error vulnerability. Successful exploitation could lead to arbitrary code execution .
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 confidenceA buffer error vulnerability in Adobe Acrobat and Reader allows arbitrary code execution through malformed PDF content processing. The vulnerability affects specific older versions across multiple release lines (2020, 2017, and 2015).
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>= 15.006.30060, <= 15.006.30523>= 15.008.20082, <= 20.009.20074>= 17.011.30059, <= 17.011.30171= 20.001.30002>= 15.006.30060, <= 15.006.30523>= 15.008.20082, <= 20.009.20074>= 17.011.30059, <= 17.011.30171= 20.001.30002CVSS 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
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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 Adobe Acrobat or Reader installationOpen Windows Control Panel > Programs and Features, or on macOS check /Applications folder for Adobe Acrobat or Adobe Reader applicationsAffected if Either Adobe Acrobat DC or Adobe Acrobat Reader DC is installed
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Determine installed application versionIn Windows: Right-click the application in Start menu, select Properties > Details tab > look for Version field. On macOS: Right-click the app > Get Info > look for VersionAffected if A version number is displayed that matches the affected ranges
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Compare version against affected rangesCompare your installed version number to these affected ranges: 15.006.30060-15.006.30523, 15.008.20082-20.009.20074, 17.011.30059-17.011.30171, or exactly 20.001.30002Affected if Your installed version falls within or matches any of these ranges
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Confirm PDF processing capabilityVerify the application can open and process PDF files (this is the default behavior for Acrobat and Reader)Affected if The application is capable of processing PDF documents, which is the attack vector for this vulnerability
You are affected if Adobe Acrobat DC or Reader DC is installed and its version matches any of the specified vulnerable ranges, since the vulnerability triggers through normal PDF content processing.
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 dataUpdate Adobe Acrobat and Reader to the latest patched version beyond 2020.009.20074, 2020.001.30002, 2017.011.30171, and 2015.006.30523.
- Consultation2.0 h
- Implementation2.0 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-2020-9704 — 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-2020-9704 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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