CVE-2008-1687: GNU m4

High severity, CVSS 7.5. EPSS: 2.5% chance of exploitation in the next 30 days.

The (1) maketemp and (2) mkstemp builtin functions in GNU m4 before 1.4.11 do not quote their output when a file is created, which might allow context-dependent attackers to trigger a macro expansion, leading to unspecified use of an incorrect filename.

Affected products

• GNU m4: up to and including 1.4.10

Published 2008-04-09. Last modified 2026-06-16.