VULNERABILITY INTELLIGENCE

CVE-2006-10003

CVSS score9.8 CRITICAL
EPSS probability0.56%
CISA KEVNot currently listed
Published2026-03-19
Last modified2026-07-15
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack. In the case (stackptr == stacksize - 1), the stack will NOT be expanded. Then the new value will be written at location (++stackptr), which equals stacksize and therefore falls just outside the allocated buffer. The bug can be observed when parsing an XML file with very deep element nesting

Weakness classification

  • CWE-122: Heap-based Buffer Overflow
  • CWE-193: Off-by-one Error

Primary references