VULNERABILITY INTELLIGENCE

CVE-2019-19204

CVSS score7.5 HIGH

EPSS probability6.89%

CISA KEVNot currently listed

Published2019-11-21

Last modified2026-06-17

Description

An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function fetch_interval_quantifier (formerly known as fetch_range_quantifier) in regparse.c, PFETCH is called without checking PEND. This leads to a heap-based buffer over-read.