CVE-2026-34643
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 · uneditedAfter Effects versions 26.0, 25.6.4 and earlier are affected by an out-of-bounds write 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 confidenceAfter Effects contains an out-of-bounds write vulnerability when parsing specially crafted files. An attacker can exploit this by convincing a user to open a malicious file, potentially allowing arbitrary code execution in the context of the current user.
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< 25.6.5= 26.0CVSS 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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Confirm After Effects is installedCheck for After Effects application in the system (Windows: Program Files/Adobe, macOS: /Applications) or via system package managerAffected if After Effects is present on the system
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Identify installed After Effects versionOpen After Effects and go to Help > About, or run the application with version flag from command line, or check system registry for Adobe After Effects version keyAffected if Version cannot be determined or is低于25.6.5或等于26.0
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Compare version against affected rangesDocument the exact version number (e.g., 25.4.0, 26.0, 25.6.5)Affected if Installed version is < 25.6.5 or = 26.0
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Verify file parsing feature usageThis vulnerability triggers when parsing specially crafted files - confirm if users routinely import files from external sourcesAffected if User opens files from untrusted or unknown sources using After Effects
If After Effects is installed with a version lower than 25.6.5 or equal to 26.0, and the user opens malicious files, they are affected by this vulnerability.
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 · scoped25.6.5
Update After Effects to the latest patched version. Avoid opening files from untrusted or unknown sources.
After Effects 25.6.5 or later (or the next stable release beyond version 26.0)
- 1. Back up all current After Effects projects and settings before upgrading
- 2. Uninstall the current version of Adobe After Effects
- 3. Download After Effects version 25.6.5 or later from the official Adobe website (helpx.adobe.com)
- 4. Install the updated version following Adobe's installation prompts
- 5. Verify the installed version matches or exceeds 25.6.5 by checking Help > About After Effects
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,144.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-34643 — 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-2026-34643 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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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.
- 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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