CVE-2017-15804: GNU Glibc

Critical severity, CVSS 9.8. EPSS: 2.8% chance of exploitation in the next 30 days.

The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27 contains a buffer overflow during unescaping of user names with the ~ operator.

Affected products

• GNU Glibc: up to and including 2.26

Published 2017-10-22. Last modified 2026-06-17.