Ghostwire

CVE-2026-5450: Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 to version...

CRITICAL CVSS 9.5

Published: April 20, 2026 | Last Modified: April 20, 2026

Description

Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in a one byte heap buffer overflow.

Ghostwire Analysis — What This Means Practically

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Security Coverage (2 articles)

References