What is CVE-2026-34663?

CVE-2026-34663 is a medium-severity vulnerability in Adobe Illustrator, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2026-05-12.

How severe is CVE-2026-34663?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Out-of-bounds Read in Adobe Illustrator

CVE-2026-34663

Illustrator versions 29.8.6, 30.3 and earlier are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitat…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (6.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Adobe Illustrator — versions 0
Apple Macos
Microsoft Windows

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

psirt@adobe.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-34663?: CVE-2026-34663 is a medium-severity vulnerability in Adobe Illustrator, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2026-05-12.
How severe is CVE-2026-34663?: Medium severity. CVSS v3 base score is 5.5 out of 10.