CVE-2026-102474: Red Hat Enterprise Linux 6

Medium severity, CVSS 4.0. EPSS: 0.1% chance of exploitation in the next 30 days.

A flaw was found in dash. The printf builtin reserves four bytes before converting a Unicode \u or \U escape, but the multi-byte token can need five or six bytes. A local user who can supply such an escape to dash printf or echo %b, including through dash -c and a positional argument, can write one or two bytes past that reservation.

Affected products

• Red Hat Red Hat Enterprise Linux 6

Published 2026-09-29. Last modified 2026-09-29.