CVE-2023-2663: Xpdfreader Xpdf

Medium severity, CVSS 5.5. EPSS: 0.5% chance of exploitation in the next 30 days.

 In Xpdf 4.04 (and earlier), a PDF object loop in the page label tree leads to infinite recursion and a stack overflow.

Affected products

• Xpdfreader Xpdf: up to and including 4.04

Published 2023-05-11. Last modified 2026-06-17.