CVE-2019-9754 json
An issue was discovered in Tiny C Compiler (aka TinyCC or TCC) 0.9.27.
published 2019-03-13 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-19117
- cvss
- 5.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- tcc Debian 13, Debian 12 0.9.27+git20200814.62c30a4a-1
debian advisories DEBIAN-CVE-2019-9754
Exploit prediction
0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- lists.nongnu.org https://lists.nongnu.org/archive/html/tinycc-devel/2019-03/msg00038.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.5 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
lists.nongnu.org
/archive/html/tinycc-devel/2019-03/msg00038.html
exploit, mailing-list, third-party-advisory
Sources
- CVE List CVE-2019-9754
- NVD CVE-2019-9754
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.