Security readout for executives and security teams
Plain-English summary
A malicious Illustrator file can exploit a memory-handling flaw when opened, potentially letting an attacker run code with the victim’s account permissions. This could expose or alter files and disrupt the workstation. The issue is high severity but requires a user to open the crafted file.
Executive priority
Prioritize prompt remediation on creative, marketing, publishing, and contractor systems that handle external files. Accelerate updates for privileged users or endpoints accessing sensitive repositories. The required user interaction lowers immediacy compared with zero-click flaws, but arbitrary code execution and potentially severe data impact justify high priority.
Technical view
CVE-2026-27267 is a stack-based buffer overflow (CWE-121) affecting Illustrator Desktop 2026 version 30.1 and earlier and Illustrator Desktop 2025 version 29.8.4 and earlier. Successful exploitation can execute arbitrary code as the current user. CVSS 3.1 is 7.8, with user interaction required and high confidentiality, integrity, and availability impacts.
Likely exposure
Exposure is concentrated on workstations running the affected Illustrator versions, especially where users receive or download untrusted design files. Compromise inherits the current user’s permissions, so accounts with broader file or network access present greater business risk.
Exploitation context
The victim must open a malicious file; the sources do not describe a remote, interaction-free attack. The bundle reports no CISA KEV listing and provides no evidence of active exploitation. Public exploit availability is not established by the supplied sources.
Researcher notes
The supplied evidence identifies CWE-121 and code execution but does not provide the vulnerable component, file format, crash details, exploit primitives, or technical root cause. Version exposure and remediation validation should therefore rely on exact installed versions and Adobe’s advisory. No active-exploitation or public-proof-of-concept claim is supported.
Mitigation direction
- Update Illustrator Desktop 2026 to version 30.2 or later.
- Update Illustrator Desktop 2025 to version 29.8.5 or later.
- Consult Adobe’s advisory for platform-specific installation and deployment guidance.
- Warn users not to open unexpected or untrusted Illustrator files until updates are verified.
Validation and detection
- Inventory installed Illustrator editions and exact version numbers across managed endpoints.
- Confirm 2026 installations are version 30.2 or later.
- Confirm 2025 installations are version 29.8.5 or later.
- Verify update deployment succeeded on systems used to process externally supplied design files.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-121: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-27267 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9adobeVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/illustrator/apsb26-18.htmlCVE reference, adobe · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.