CVE-2026-27271
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 29.8.4, 30.1 and earlier are affected by a Heap-based Buffer Overflow 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 confidenceAdobe Illustrator versions 29.8.4, 30.1 and earlier contain a heap-based buffer overflow vulnerability in the file parsing logic. When a victim opens a specially crafted malicious file, the heap overflow can be triggered to achieve 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>= 29.0, < 29.8.5>= 30.0, < 30.2CVSS 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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Check Adobe Illustrator installed versionOpen Adobe Illustrator and navigate to Help > About Adobe Illustrator. The version number will be displayed in the dialog. Alternatively, on Windows check Programs and Features in Control Panel; on macOS check the Applications folder.Affected if The displayed version falls within 29.0 to 29.8.4 or 30.0 to 30.1 (inclusive)
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Verify version against affected rangesCompare your installed version to the vulnerable ranges: versions 29.0 through 29.8.4 and versions 30.0 through 30.1 are affected. Versions 29.8.5 and later, or 30.2 and later, contain the security patch.Affected if Installed version is less than 29.8.5 in the 29.x branch OR less than 30.2 in the 30.x branch
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Assess file parsing exposureThis heap-based buffer overflow is triggered specifically when Illustrator opens a specially crafted malicious file. Identify whether users in your environment open AI, EPS, or other Illustrator file formats from untrusted or unknown sources.Affected if Users routinely open Illustrator files from untrusted external sources without prior validation
Your environment is affected if Adobe Illustrator version 29.0-29.8.4 or 30.0-30.1 is installed AND users may open maliciously 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 · scoped29.8.530.2
Apply the vendor security patch from Adobe to upgrade to a fixed version of Illustrator. Until patched, advise users not to open untrusted files and consider deploying additional email/endpoint detection controls.
Illustrator 29.8.5 or later; or Illustrator 30.2 or later
- Check current Adobe Illustrator version by going to Help > About Illustrator
- For versions 29.0-29.8.4: Upgrade to Illustrator version 29.8.5 or later
- For versions 30.0-30.1: Upgrade to Illustrator version 30.2 or later
- Download the latest version from the official Adobe website at helpx.adobe.com or through the Creative Cloud desktop application
- Restart Illustrator after installation to ensure the patch is fully applied
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-27271 — 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-2026-27271 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
- No spam, self-promotion, credentials, or personal data