What’s Vulnerable › Vulnerabilities

CVE-2018-20374

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-12-23 · updated 2026-06-17
• Weakness: CWE-787

Description

An issue was discovered in Tiny C Compiler (aka TinyCC or TCC) 0.9.27. Compiling a crafted source file leads to an 8 byte out of bounds write in the use_section1 function in tccasm.c.

Affected products

• Tinycc: 0.9.27

References

• https://lists.nongnu.org/archive/html/tinycc-devel/2018-12/msg00015.html
• https://lists.nongnu.org/archive/html/tinycc-devel/2018-12/msg00015.html

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