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Acrobat DcApplication · Adobe

CVE-2022-34239

MEDIUM · 5.5 CVSS v3.1 Published 2022-07-15
Fix available
A fix is available. Upgrade to after 22.001.20142 or later.
See remediation →
58/100
Remediation priority · Elevated
No privileges

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 · unedited
Adobe Acrobat Reader versions 22.001.20142 (and earlier), 20.005.30334 (and earlier) and 17.012.30229 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. 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 confidence

This is an out-of-bounds read vulnerability in Adobe Acrobat Reader that allows reading memory beyond allocated buffers. The vulnerability can leak sensitive memory contents and potentially bypass ASLR (Address Space Layout Randomization), a key memory protection mechanism. Exploitation requires a victim to open a malicious PDF file.

MitigationUpdate Adobe Acrobat Reader to the latest version beyond the affected releases (22.001.20142, 20.005.30334, 17.012.30229). Implement file-based screening and user training to reduce risk from malicious PDF files.

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
Acrobat DcApplication
Affected:>= 15.008.20082, <= 22.001.20142
Acrobat Reader DcApplication
Affected:>= 15.008.20082, <= 22.001.20142
AcrobatApplication
Affected:>= 20.001.30005, <= 20.005.30334>= 20.001.30005, <= 20.005.30331>= 17.011.30059, <= 17.012.30229>= 17.011.30059, <= 17.012.30227
Acrobat ReaderApplication
Affected:>= 20.001.30005, <= 20.005.30334>= 20.001.30005, <= 20.005.30331>= 17.011.30059, <= 17.012.30229>= 17.011.30059, <= 17.012.30227

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Verify Adobe Acrobat product is installed
    Open Windows Control Panel > Programs and Features, or check C:\Program Files\Adobe for Adobe Acrobat or Adobe Acrobat Reader folders
    Affected if Adobe Acrobat Reader or Adobe Acrobat is present on the system
  2. Obtain installed version number
    Open Adobe Acrobat Reader or Adobe Acrobat, go to Help > About Adobe Acrobat Reader (or About Adobe Acrobat) to display the exact version string
    Affected if Unable to retrieve version indicates product may not be standard installation
  3. Confirm version falls within affected range for DC products
    Compare your version to these ranges: 15.008.20082 through 22.001.20142 for Acrobat/Reader DC Classic or Continuous
    Affected if Version number is greater than or equal to 15.008.20082 AND less than or equal to 22.001.20142
  4. Confirm version falls within affected range for 2020 products
    Compare your version to: 20.001.30005 through 20.005.30334, or 20.001.30005 through 20.005.30331 for different tracks
    Affected if Version number is between 20.001.30005 and 20.005.30334 (or 20.005.30331 depending on track)
  5. Confirm version falls within affected range for 2017 products
    Compare your version to: 17.011.30059 through 17.012.30229, or 17.011.30059 through 17.012.30227 for different tracks
    Affected if Version number is between 17.011.30059 and 17.012.30229 (or 17.012.30227 depending on track)

Your environment is affected if Adobe Acrobat Reader or Adobe Acrobat is installed AND its version falls within any of the listed vulnerable ranges, making the application susceptible to out-of-bounds read when processing malicious PDF files.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Upgrade available Upgrade to a release after 22.001.20142
Interim mitigation

Update Adobe Acrobat Reader to the latest version beyond the affected releases (22.001.20142, 20.005.30334, 17.012.30229). Implement file-based screening and user training to reduce risk from malicious PDF files.

Fix this in Acrobat Dc Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-34239 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data