CVE-2026-27267
Published: 10 March 2026
Summary
CVE-2026-27267 is a high-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Adobe Illustrator. Its CVSS base score is 7.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked at the 8.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-16 (Memory Protection) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly remediates the stack-based buffer overflow vulnerability in Adobe Illustrator by requiring timely application of vendor patches from APSB26-18.
Implements memory protections like stack canaries, ASLR, and DEP to block arbitrary code execution from stack-based buffer overflows.
Supports vulnerability scanning to identify systems with vulnerable Adobe Illustrator versions 29.8.4, 30.1, and earlier.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stack-based buffer overflow in client app (Illustrator) triggered by malformed file directly enables T1203 (Exploitation for Client Execution) and T1204.002 (Malicious File) for arbitrary code execution.
NVD Description
Illustrator versions 29.8.4, 30.1 and earlier are affected by a Stack-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…
more
open a malicious file.
Deeper analysisAI
CVE-2026-27267 is a stack-based buffer overflow vulnerability (CWE-121) affecting Adobe Illustrator versions 29.8.4, 30.1, and earlier. Published on 2026-03-10, this flaw could result in arbitrary code execution in the context of the current user when processing malformed files.
Exploitation requires local access (AV:L) and user interaction (UI:R), with low attack complexity (AC:L) and no privileges needed (PR:N). An attacker can trick a victim into opening a malicious file, triggering the buffer overflow and achieving high-impact confidentiality, integrity, and availability effects (C:H/I:H/A:H) within the user's scope (S:U). The CVSS v3.1 base score is 7.8.
Adobe's security bulletin APSB26-18, available at https://helpx.adobe.com/security/products/illustrator/apsb26-18.html, details mitigations and patches for this vulnerability.
Details
- CWE(s)