VULNERABILITY INTELLIGENCE

CVE-2026-5450

CVSS score9.8 CRITICAL
EPSS probability0.50%
CISA KEVNot currently listed
Published2026-04-20
Last modified2026-07-14
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • 3ff69d7a-14f2-4f67-a097-88dee7810d18: CWE-122
  • nvd@nist.gov: CWE-787

Primary references