CVE-2026-21288
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 · uneditedIllustrator versions 29.8.3, 30.0 and earlier are affected by a NULL Pointer Dereference vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing disruption to services. 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 confidenceAdobe Illustrator versions 29.8.3, 30.0 and earlier contain a NULL Pointer Dereference vulnerability that causes application crash when processing a specially crafted malicious file, resulting in denial-of-service.
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>= 29.0, < 29.8.4= 30.0CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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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Locate Adobe Illustrator installationCheck for Adobe Illustrator in the system (Windows: Program Files/Adobe, Mac: /Applications), or use system tools like 'wmic product' on Windows or 'ls /Applications' on Mac to list installed applicationsAffected if Adobe Illustrator is not installed on the system
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Identify installed Adobe Illustrator versionAccess the application's version information - on Windows, right-click the executable and select Properties > Details, or use command 'wmic product where "name like 'Adobe Illustrator%'" get version,installlocation'; on Mac, right-click Adobe Illustrator.app > Get Info or run 'defaults read /Applications/Adobe\ Illustrator\ 2024.app/Contents/Info CFBundleShortVersionString' (adjusting for installed version)Affected if Unable to determine the version - further manual verification required
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Compare version against affected rangesReview the identified version number. The affected ranges are: versions 29.0 through 29.8.3 (inclusive), and exactly version 30.0. Check if the installed version falls within these ranges or equals 30.0Affected if Installed version is 29.8.3 or earlier, or exactly 30.0, or any version from 29.0 up to but not including 29.8.4
The system is affected if Adobe Illustrator is installed AND the installed version is 29.0-29.8.3 or exactly 30.0, as these versions contain the NULL pointer dereference flaw when processing specially crafted files.
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 · scoped29.8.4
Apply Adobe's security patch or upgrade to a version later than 30.0 when released; avoid opening untrusted files until the patch is applied.
Adobe Illustrator 29.8.4 or later (or latest 30.x release)
- Open Adobe Illustrator and go to Help > About Adobe Illustrator to check current version
- If running version 29.0 through 29.8.3 or version 30.0, an update is needed
- Open Adobe Creative Cloud desktop application
- Navigate to the Apps section
- Find Adobe Illustrator in the available updates
- Click Update or Install to update to version 29.8.4 or later
- Verify the update was successful by checking Help > About Adobe Illustrator again
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation1.0 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-2026-21288 — 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-2026-21288 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
- No spam, self-promotion, credentials, or personal data