VULNERABILITY INTELLIGENCE

CVE-2019-12495

CVSS score5.5 MEDIUM
EPSS probability1.22%
CISA KEVNot currently listed
Published2019-05-31
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Description

An issue was discovered in Tiny C Compiler (aka TinyCC or TCC) 0.9.27. Compiling a crafted source file leads to a one-byte out-of-bounds write in the gsym_addr function in x86_64-gen.c. This occurs because tccasm.c mishandles section switches.

Weakness classification

  • CWE-787: Out-of-bounds Write

Primary references