CVE-2022-28239
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 · uneditedAcrobat Reader DC version 22.001.2011x (and earlier), 20.005.3033x (and earlier) and 17.012.3022x (and earlier) are affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to execute code in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
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 confidenceThis is an out-of-bounds read vulnerability in Adobe Acrobat Reader DC that occurs when parsing a crafted PDF file. The vulnerability allows reading past the end of an allocated memory structure, which could potentially be leveraged to achieve arbitrary code execution in the context of the current user. Exploitation requires user interaction (opening a malicious PDF).
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>= 15.008.20082, <= 22.001.20085>= 15.008.20082, <= 22.001.20085>= 17.011.30059, <= 17.012.30205>= 20.001.30005, <= 20.005.30314>= 20.001.30005, <= 20.005.30311>= 17.011.30059, <= 17.012.30205>= 20.001.30005, <= 20.005.30314>= 20.001.30005, <= 20.005.30311CVSS 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 is installedCheck for installed version via Windows Registry: HKLM\SOFTWARE\Adobe\Adobe Acrobat\DC\Version or HKLM\SOFTWARE\Adobe\Adobe Acrobat Reader\DC\Version, or check common install directory C:\Program Files\Adobe\Acrobat DC or C:\Program Files (x86)\Adobe\Acrobat DCAffected if Adobe Acrobat or Acrobat Reader is present on the system
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Determine installed product versionRead the version value from the registry key or right-click the executable (e.g., AcroRd32.exe or AcroPro.exe) in Program Files, select Properties, and view the File Version fieldAffected if Version matches any of the affected ranges listed below
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Compare against affected version rangesMatch your installed version to these ranges: For Acrobat/Reader DC (Continuous): 15.008.20082 through 22.001.20085; For Acrobat/Reader 17.x: 17.011.30059 through 17.012.30205; For Acrobat/Reader 20.x (Acrobat): 20.001.30005 through 20.005.30314; For Acrobat/Reader 20.x (Reader): 20.001.30005 through 20.005.30311Affected if Installed version falls within any of these inclusive ranges
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Confirm PDF parsing functionality is availableVerify the core PDF parsing components (AcroRd32.dll or AcroPDF.dll) exist in the installation directory - these are required for the vulnerable code path to execute when a PDF is openedAffected if PDF parsing DLLs are present and the application can open PDF files
You are affected if Adobe Acrobat or Acrobat Reader is installed with a version number within the ranges 15.008.20082-22.001.20085, 17.011.30059-17.012.30205, or 20.001.30005-20.005.30314/20.005.30311 depending on the product track.
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.
dbcve · scopedUpdate Adobe Acrobat Reader DC to the latest patched version beyond 22.001.2011x, 20.005.3033x, and 17.012.3022x. Until patched, avoid opening untrusted PDF files and enable protected view for all files.
Acrobat DC (Continuous): 22.001.20142 or later | Acrobat 2020 (Classic): 20.005.30434 or later | Acrobat 2017 (Classic): 17.012.30293 or later
- 1. Verify the currently installed Adobe Acrobat or Reader version by opening the application, selecting 'Help' > 'About Adobe Acrobat Reader' (or 'About Adobe Acrobat').
- 2. Identify the product line and current version number from the 'About' dialog.
- 3. For Acrobat/Acrobat Reader DC (Continuous track): Upgrade to version 22.001.20142 or later.
- 4. For Acrobat/Acrobat Reader 2020 (Classic track): Upgrade to version 20.005.30434 or later.
- 5. For Acrobat/Acrobat Reader 2017 (Classic track): Upgrade to version 17.012.30293 or later.
- 6. Download the appropriate updated version from the official Adobe website: https://get.adobe.com/reader/ (for Reader) or https://get.adobe.com/acrobat/ (for Acrobat).
- 7. Close all running instances of Adobe Acrobat or Reader.
- 8. Run the installer for the updated version and follow the on-screen prompts to complete the installation.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 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-2022-28239 — 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-2022-28239 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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