What’s Vulnerable › Vulnerabilities

CVE-2019-9754

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-03-13 · 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 1 byte out of bounds write in the end_macro function in tccpp.c.

Affected products

• Tinycc: 0.9.27

References

• https://lists.nongnu.org/archive/html/tinycc-devel/2019-03/msg00038.html
• https://lists.nongnu.org/archive/html/tinycc-devel/2019-03/msg00038.html

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