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After EffectsApplication · Adobe

CVE-2026-34644

HIGH · 7.8 CVSS v3.1 Published 2026-05-12
Fix available
A fix is available. Upgrade to 25.6.5 or later.
See remediation →
81/100
Remediation priority · High
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
After Effects versions 26.0, 25.6.4 and earlier are affected by an Integer Overflow or Wraparound vulnerability that could result in arbitrary code execution 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 confidence

Adobe After Effects contains an integer overflow vulnerability in its file parsing logic. When a user opens a specially crafted malicious file, the integer overflow can be triggered, potentially allowing an attacker to execute arbitrary code in the context of the current user. The vulnerability requires user interaction (opening the malicious file) for exploitation.

MitigationUsers should avoid opening files from untrusted sources and update to a patched version of After Effects when released by Adobe. Organizations should consider file-based sandboxing or endpoint protection solutions capable of detecting malicious media 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
After EffectsApplication
Affected:< 25.6.5= 26.0

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
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 checks

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

  1. Check if Adobe After Effects is installed
    On Windows, open Programs and Features or check C:\Program Files\Adobe\ for an 'Adobe After Effects' folder. On macOS, check /Applications for Adobe After Effects.app.
    Affected if The software is present on the system.
  2. Identify the installed After Effects version
    On Windows, open the registry editor and navigate to HKEY_CLASSES_ROOT\Adobe After Effects [version]\shell\Open\command, or within After Effects go to Help > About After Effects. On macOS, right-click Adobe After Effects.app and select Get Info.
    Affected if The displayed version is less than 25.6.5 or exactly equals 26.0.
  3. Verify the file parsing component exists
    Confirm the main After Effects executable (AfterFX.exe on Windows or After Effects.app on macOS) is present in the installation directory.
    Affected if The executable exists and the version falls within the affected range from step 2.
  4. Assess user interaction exposure
    Review whether users in the environment have the ability to open files from external or untrusted sources. This vulnerability is triggered only when a user opens a specially crafted malicious file.
    Affected if Users can open arbitrary files and the installed version is vulnerable per step 2.

A user is affected if Adobe After Effects version is less than 25.6.5 or exactly 26.0, and users can open files from untrusted sources.

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.

dbcve · scoped
Upgrade available Upgrade to 25.6.5 or later
Fixed in 25.6.5
Interim mitigation

Users should avoid opening files from untrusted sources and update to a patched version of After Effects when released by Adobe. Organizations should consider file-based sandboxing or endpoint protection solutions capable of detecting malicious media files.

Recommended fix High confidence

After Effects 25.6.5 or later (or 26.1+ if currently on 26.0)

  1. Open Adobe Creative Cloud desktop application or navigate to Adobe's official download page
  2. Check for available updates for After Effects
  3. Download and install After Effects version 25.6.5 or later
  4. Alternatively, if using version 26.0, check for and install version 26.1 or later which should contain the fix
  5. Restart After Effects after installation
  6. Verify the installed version by going to Help > About After Effects
Caveat Standard upgrade risks apply - ensure project backups exist before upgrading major versions

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in After Effects Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing8.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,880
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,808.

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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-2026-34644 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